The attack took place near Quetta, the capital of Balochistan province.
Police said the attackers forced the passengers to stand in a line and fired at them. Eleven of the dead and four of the injured were Shias, say reports.
In recent years, there have been a number of bomb blasts and shootings targeting the minority Shia community.
The BBC's Orla Guerin in Islamabad says that it was a merciless and chilling attack in the morning rush hour and the second sectarian strike in Pakistan in recent weeks.
A fortnight ago, 26 Shia pilgrims were killed by a group of gunmen who opened fire on their bus in Mastung district, in Balochistan.
And a month ago, a suicide cab bomb attack in a parking area of a Shia mosque killed at least 11 people in Quetta. Police said most of the victims were Shia Muslims.
In an interview with the BBC, Pakistani Interior Minister Rehman Malik said that he had written to the Punjab provincial government asking them to take action against anti-Shia militants who are based in Jhang district.
"Basically I've said that the headquarters of these organisations are in Jhang and the people associated with these organisations roam free delivering speeches," he said.
Mr Malik said that he wanted action taken against such organisations using anti-terrorism laws so "that their movements are restricted and hence their activities will also be curbed".
He also said that he intended to provide security escorts for Shia pilgrims and travellers going overland from Pakistan to Iran.
Largest minority Following the latest attack, police said the bus had been heading to a vegetable market on the outskirts of Quetta where the men were going to work, the Associated Press news agency reported.
Reports said Shia protesters, angered by the attack, had blocked the main highway near Quetta and set fire to the bus which had been attacked.
Shia Muslims are the largest minority in Pakistan and many complain that they have been abandoned by the authorities.
Thousands of Shias and hundreds of Sunnis have been killed since sectarian violence - carried out by hardliners from both groups - first emerged in Punjab, the north-western Kurram tribal region and the town of Dera Ismail Khan in the early 1990s.
The BBC's M Ilyas Khan in Islamabad says that sectarian strife only hit Balochistan 10 years ago, but since then more than 600 members of the Shia Hazara community have been killed. Our correspondent says that they have been targeted as much for their ethnicity as for their religion.
Most of the attacks in the past have been blamed on the Sunni Lashkar-e-Jhangvi (LJ) sectarian outfit, a predominantly Punjabi group with links to al-Qaeda and the Taliban.

The Tibetan spiritual leader's office said the South African government had failed to grant him a visa on time.
He was due to take part in Friday's celebrations to mark the archbishop's 80th birthday.
Pretoria has maintained that it did not come under pressure from China to stop the visit.
The row intensified as South Africa's Deputy President Kgalema Motlanthe visited China for four days of talks last week, signing a number of bilateral trade and investment deals. He made no public mention of the visa issue while in China.
It is the second time in two years that the Dalai Lama's visit to South Africa has been blocked.
'Inconvenient' "His Holiness was to depart for South Africa on 6 October 2011 but visas have not been granted yet," the Dalai Lama's office in northern India said in a statement.
"We are, therefore, now convinced that for whatever reason or reasons, the South African government finds it inconvenient to issue [a] visa to His Holiness the Dalai Lama."
The statement said he had cancelled his visit because he "does not want to create any inconveniences to anyone, individuals or governments" in his work, but that he "regrets the inconveniences caused to his hosts and the large number of South African public".
Beijing considers the Dalai Lama to be a dangerous separatist seeking to lead Tibet in breaking away from China.
But he has repeatedly stated that his goal is for greater Tibetan autonomy rather than independence.
Protests have been held outside South Africa's parliament by his supporters, who say the country's sovereignty is being compromised.
Archbishop Tutu's office had accused the South African government of dragging its feet over the visa application.
At the weekend, the Desmond Tutu Peace Centre put its name to a petition calling for the Dalai Lama to be allowed into South Africa.
Signatories to the petition said they were "ashamed and hurt" by the visa delays and that they believed the Dalai Lama was being refused entry "on the basis of political considerations that are inconsistent with our Constitution and the values contained in it".

Evidence from the case showed the murder was plotted in the Pakistani city of Quetta, a statement said.
Rabbani was assassinated on 20 September by a suicide attacker who purported to be a Taliban peace envoy.
Kabul has often accused Pakistan of supporting militants but Islamabad has denied any role in Rabbani's death.
After the killing, Afghan President Hamid Karzai said his government would no longer hold peace talks with the Taliban, but would focus on dialogue with Pakistan.
'Message of peace' The Afghan government statement quoted its investigators as saying: "Documents and evidence together with the biography, address and phone numbers of suspects involved in the incident have been submitted to the government of Pakistan in order to arrest and hand [suspects] over."
A spokesman for Mr Karzai, Siamak Herawi, reiterated on Sunday that peace talks with the Taliban were suspended and that a new peace strategy would be spelled out "very soon".
On Friday, Mr Karzai made it clear where the efforts should focus.
He said: "[Taliban leader] Mullah Omar doesn't have an address... their peace emissary turns out to be a killer, whom should we talk to?
"The Afghan nation asks me who's the other party that you hold talks with? My answer is, Pakistan."
Both Afghanistan and the US have accused Pakistan's intelligence agency, the ISI, of supporting militant groups.
In particular, the ISI is accused of backing the Haqqani network, said to be behind a series of high-profile attacks on US and Afghan government targets in Kabul.
On Saturday Afghan Interior Minister Besmillah Mohammadi said that "without doubt" the ISI was also involved in Rabbani's killing.
On Sunday, Pakistan's foreign ministry issued a statement calling the allegation "baseless and irresponsible", saying that Rabbani had been Pakistan's friend.
Rabbani was the leader of the Peace Council, constituted by Mr Karzai and tasked with negotiating with the Taliban.
Rabbani was killed in his own home while meeting two men claiming to be from the Taliban, one of whom had a bomb hidden in his turban.
The Peace Council said it had been in touch with what it believed to be the Taliban high command based in Quetta, and was told a messenger would be sent to Kabul.
The attacker purported to have a "message of peace" and had sent a CD which even the president heard, to get access to Rabbani.
Officials say they believed the message would signal a major breakthrough, but it proved to be a trick.
The Taliban have said so far only that they do not wish to comment on the killing.

Local police chief Lt Col Lufti Martadian said Beni Asri was captured near his parents' house in Solok, West Sumatra province, on Friday.
Beni Asri is suspected of helping to plot a suicide bomb attack on a church in the central Java town of Solo last Sunday that injured at least 20 people.
He is also wanted over a suicide attack on police in West Java last April.
That bombing, during Friday prayers at a mosque in a police compound in Cirebon, injured nearly 30 police officers.
Lt Col Lufti Martadian said Beni Asri was flown to Jakarta for questioning following his arrest, the Associated Press reports.
The 26-year-old was one of four people named by police this week as being wanted on suspicion of helping the suicide bomber attack worshippers as they left the Bethel Injil Sepuluh church in Keputon, Solo, after a service last Sunday.
Indonesian President Susilo Bambang Yudhoyono said, in the aftermath of the attack, that initial investigations indicated the bomber was a member of the same terror group which carried out a suicide attack at the mosque in Cirebon.
Beni Asri was one of five people already being sought by police in connection with the Cirebon attack.
Indonesia is the world's most populous Muslim country but is officially a secular state.
Militant Islamist groups have carried out a number of deadly attacks in Indonesia in recent years.

The authorities are still trying to evacuate people amid a threat of further flash floods and landslides in the aftermath of typhoon Nalgae.
At least 52 people were killed and thousands made homeless after Typhoon Nesat hit the country on Tuesday.
Nalgae has followed the same route, killing at least three people.
The death toll is expected to rise following Nalgae's six-hour rampage on Saturday across areas of the main Luzon island already waterlogged by Nesat.
Nalgae has now moved into the South China Sea and is heading towards southern China with winds of 81mph (130k/ph) and gusts of 99mph (160k/ph).
'Big problem' Hundreds of residents in the farming town of Calumpit, north of Manila, have spent four days on the roofs of their homes to escape the rising flood waters - running short of food and water.
"We have a very big problem here," Calumpit Mayor James de Jesus told ABS-CBN TV network. "We're facing a long flooding".
Benito Ramos, of the Office of Civil Defense, was inspecting the situation in the town, and warned that more water - flowing down from the nearby Cordillera mountain range - could exacerbate the problem.
He called on anyone "refusing to leave their homes, to let the authorities evacuate them".
Nalgae made landfall in the eastern province of Isabela on Saturday. At its strongest it was packing winds of up to 195km/h (121mph).
It followed the same route as Nesat, which had already affected more than 2.4 million people.
More than a million people had moved into evacuated centres, while others sought refuge at the homes of relatives and friends. Thousands were reportedly trapped on the roofs of their homes as Nesat barrelled across the island.
Provincial disaster official Raul Agustin told ABS-CBN television that marooned flood victims were often reluctant to leave for fear their homes would be looted.
"When we send out rescue teams to help them, they ask for food instead," he said.
The Philippines suffers frequent typhoons, about 20 a year.
Send your pictures and videos to yourpics@bbc.co.uk or text them to 61124 (UK) or +44 7624 800 100 (International). If you have a large file you can upload here.

 
As a university lecturer in the 1970s, Rabbani was the founding father of the Afghan mujahideen
Evidence from the case showed the murder was plotted in the Pakistani city of Quetta, a statement said.
Rabbani was assassinated on 20 September by a suicide attacker who purported to be a Taliban peace envoy.
Kabul has often accused Pakistan's government of supporting militant groups, a charge Islamabad denies.
After Rabbani's death, Afghan President Hamid Karzai said his government would no longer hold peace talks with the Taliban, but would focus on dialogue with Pakistan.
'Message of peace' The Afghan government statement quoted its investigators as saying: "Documents and evidence together with the biography, address and phone numbers of suspects involved in the incident have been submitted to the government of Pakistan in order to arrest and hand [suspects] over."
A spokesman for Mr Karzai, Siamak Herawi, reiterated on Sunday that peace talks with the Taliban were suspended and that a new peace strategy would be spelled out "very soon".
On Friday, Mr Karzai made it clear where the efforts should focus.
He said: "[Taliban leader] Mullah Omar doesn't have an address... their peace emissary turns out to be a killer, whom should we talk to?
"The Afghan nation asks me who's the other party that you hold talks with? My answer is, Pakistan."
Both Afghanistan and the US have accused Pakistan's intelligence agency, the ISI, of supporting militant groups.
In particular, the ISI is accused of backing the Haqqani network, said to be behind a series of high-profile attacks on US and Afghan government targets in Kabul.
On Saturday Afghan Interior Minister Besmillah Mohammadi said that "without doubt" the ISI was also involved in Rabbani's killing.
Pakistan has regularly denied supporting militant groups.
Rabbani was the leader of the Peace Council, constituted by Mr Karzai and tasked with negotiating with the Taliban.
Rabbani was killed in his own home while meeting two men claiming to be from the Taliban, one of whom had a bomb hidden in his turban.
The Peace Council said it had been in touch with what it believed to be the Taliban high command based in Quetta, and was told a messenger would be sent to Kabul.
The attacker purported to have a "message of peace" and had sent a CD which even the president heard, to get access to Rabbani.
Officials say they believed the message would signal a major breakthrough, but it proved to be a trick.
The Taliban have said so far only that they do not wish to comment on the killing.

Beijing (CNN) -- China on Thursday launched its first space laboratory module, marking another step upward for its space program.
"We must soberly recognize that China's space-station technology is still in its initial stage, compared to those of the U.S. and Russia," said a commentary from the state-run Xinhua News Agency.
"But the launch of Tiangong-1 is the beginning of China's efforts to narrow the gap."
China-watchers agree.
"The test reflects China's technological advances, funded by its rapid economic growth and facilitated by the military's ballistic missile program," says Taylor Fravel, associate professor at the Massachusetts Institute of Technology (MIT).
The unmanned space-lab is an 8-ton module named Tiangong-1, or "Heavenly Palace." That's what the Chinese called outer space in ancient times.
Tiangong-1 is designed to stay in space for two years and is expected to dock with an unmanned spacecraft in November.
China launches first space docking mission
The rendezvous next month will be the true test of the mission, experts say. "Docking is necessary for the development of a space station, which is China's long-term objective," says Fravel.
China needs to master this docking technique to be able to build its own manned space station by around 2020.
It also hopes to send a man to the moon and even explore Mars, bringing it in the same league as the United States as a superpower in space.
For Beijing, this week's launch is more than a space mission. It is meant to boost national pride and prestige.
"It is no coincidence that the launch of Tiangong-1 occurs just before October 1," says MIT's Fravel, referring to China's National Day holiday, when the People's Republic was officially established in 1949.
"I am very proud of our space program," exudes a visitor at Beijing Planetarium. "Spending on the space program is very necessary to advance science and technology in our country," says another.
China also hopes to reap other benefits. Space missions, experts say, spur technological and scientific breakthroughs in such fields as electronics, computer, engineering, materials and other industries. There are military and electronic-intelligence applications too.
And of course, the economic dividends are lucrative. Glitch-less space launches are a publicity bonanza for China's satellite-launch industry, which is already a huge money-making business.
China's modern-day space ambitions date back to 1970, when it catapulted the country's first satellite into orbit. I remember how over the years the Chinese proudly spoke of that breakthrough, bragging that the small space module even transmitted the revolutionary tune "East Is Red" as it circled the Earth.
But hardly anyone considered China as a serious player in space exploration.
Over the years, China has been catching up, pumping enormous sums of money and resources into research and training.
"In the early 1990s, President Jiang Zemin gave the go-ahead for a manned space program and the decision set off a tremendous construction boom that was in some ways as impressive as NASA's buildup for the Apollo project in the 1960s," writes James Oberg in his book "China's Great Leap Upward".
In 2003, China's first astronaut, Colonel Yang Liwei, orbited the Earth in a Chinese-made Shenzhou capsule before landing to a hero's welcome.
Yang's voyage into space -- called "taikong" in Chinese -- gave birth to the new word "taikonaut."
Only China, Russia and the United States have sent men into space.
In 2004, I joined a group of journalists visiting the Jiuquan Space Center, where taikonaut Yang and the Tiangong-1 blasted off. It was the first time Chinese officials had allowed international journalists into the sprawling top-secret launch center.
China's equivalent of Cape Canaveral is an unpretentious cluster of white buildings and towers, tucked in northwestern China's vast Gobi desert.
We were forbidden from taking pictures of the command-and-control center but we were shown around the center's facilities, including the launch towers and silos, an Olympic-sized swimming pool and the taikonauts' austere apartments.
Might the Chinese become the new space leaders of the 21st century?
They just might. China is forging ahead to build its own space station, even though the costs would be enormous, while the U.S. and other space powers have apparently discarded that option.
China is not part of the International Space Station (ISS), which currently orbits the Earth while space experts and astronauts conduct experiments in a range of fields, from physics to astronomy.
The ISS is a consortium among NASA, Russia's RKA space agency, Japan's Aerospace Exploration Agency, the European Space Agency and the Canadian CSA. The ISS is expected to be phased out in the future.
China is now on track to build its own space station. "This is not to say that China will never cooperate with others in space, but it would prefer to do so from a position of strength once it has developed a more capable and robust space program," says MIT's Fravel, who specializes in China's military affairs.
Should China's competitors worry about its steady strides? "The U.S. should not be too worried, at least not yet," Fravel says. "Tiangong has been likened to the Gemini program conducted by the U.S. 50 years ago."
Still, the upward trajectory of China's space program seems to point in its favor.

Washington (CNN) -- Christian Pastor Youcef Nadarkhani will be put to death for several charges of rape and extortion, charges that differ greatly from his original sentence of apostasy, Iran's semi-official Fars News agency reported Friday.
Gholomali Rezvani, the deputy governor of Gilan province, where Nadarkhani was tried and convicted, accused Western media of twisting the real story, referring to him as a "rapist." A previous report from the news agency claimed he had committed several violent crimes, including repeated rape and extortion.
"His crime is not, as some claim, converting others to Christianity," Rezvani told Fars. "He is guilty of security-related crimes."
In a translated Iranian Supreme Court brief from 2010, however, the charge of apostasy is the only charge leveled against Nadarkhani.
"Mr. Youcef Nadarkhani, son of Byrom, 32-years old, married, born in Rasht in the state of Gilan is convicted of turning his back on Islam, the greatest religion the prophesy of Mohammad at the age of 19," reads the brief.
The brief was obtained by CNN from the American Center for Law and Justice and was translated from its original Farsi by the Confederation of Iranian Students in Washington.
It goes on to say that during the court proceeding, Nadarkhani denied the prophecy of Mohammad and the authority of Islam.
"He (Nadarkhani) has stated that he is a Christian and no longer Muslim," states the brief. "During many sessions in court with the presence of his attorney and a judge, he has been sentenced to execution by hanging according to article 8 of Tahrir -- olvasileh."
Rezvani, the official from Gilan province, confirmed that his execution is "not imminent" nor is it final.
Mohammadali Dadkhah, the pastor's lawyer, said through a translator that even in light of the Fars News report, he does not believe Nadarkhani will be put to death.
"The case is still in progress," Dadkhah said. "There's a 95% that he won't get the death penalty. Yes, I still believe that."
Dadkhah spoke briefly of the trial proceedings, stating that he presented documents to the court that should be convincing, including documents from Shi'ite leaders that state the crime does not warrant the possible punishment.
"This is a legal process that should take its course, and it should stand, on its own merits. It should succeed," Dadkhah said.
Nadarkhani, the leader of a network of house churches in Iran, was first convicted of apostasy in November 2010, a charge he subsequently appealed all the way to the Iranian Supreme Court. After four days of an appeals trial that started Sunday at a lower court in Gilan Province, Nadarkhani refused to recant his beliefs.
That said, Rezvani -- echoing an earlier report from Fars -- insisted that "Nadarkhani's crime and his death sentence have nothing to do with his beliefs.
"No one is executed in Iran for their choice of religion," he added. "He is a Zionist and has committed security-related crimes."
The possible execution of Nadarkhani, based on an assumption it is tied to his Christian belief, has elicited responses from the highest levels of the United States government, too.
Secretary of State Hillary Clinton released a statement Friday that said the United States stands with "all Iranians against the Iranian government's hypocritical statements and actions."
The White House released a statement on Thursday, stating that Nadarkhani "has done nothing more than maintain his devout faith, which is a universal right for people."
"That the Iranian authorities would try to force him to renounce that faith violates the religious values they claim to defend, crosses all bounds of decency and breaches Iran's own international obligations," reads the statement.
Leonard Leo, chairman of the U.S. Commission on International Religious Freedom, says a trial for apostasy in Iran is rare. According to him, this is the first apostasy trial since 1990.
Nadarkhani's trial and his possible execution have engaged American Christians, as well. Todd Nettleton, spokesman for Voice of the Martyrs, a Christian organization that attempts to assist with persecuted and minority churches around the world, called the news of the new charges proof that international attention on the issue is working.
"They are feeling the attention, they are feeling the weight of the eyes of the world watching how they are treating this man," Nettleton said. "I am dumbfounded, though, that at this stage in the game, this is what they would trot out."
Voice of the Martyrs manages a Facebook page that has brought a lot of attention to Nadarkhani's trial. With comments updated by the minute, thousand of people have taken to Facebook to spread the word about the pastor.
In light of this news, Nettleton said the Facebook page would continue to be active.
"I think our first response will be prayer for pastor Youcef," Nettleton said. "Prayer that justice will be done and that he will remain faithful no matter that the days ahead may bring for him."

Islamabad, Pakistan (CNN) -- The death toll continues to rise from devastating flooding in southeastern Pakistan, with authorities saying Friday that 107 children are among the 434 people killed.
Roughly 660,000 people are living in refugee camps in the wake of high waters that have wrought havoc for several weeks, Pakistan's national disaster authority said in a statement. This is fewer than the 700,000 reported by the same agency just over a week ago.
About 8.9 million people have been affected by the floods, which have destroyed 1.5 million homes in 37,000 villages in Sindh province alone, according to the statement.
This marks the second straight year that Pakistan has seen deadly flooding. In August 2010, more than 20 million people were displaced and 1,700 people killed.
The latest disaster has lasted longer than a month and caused an estimated $9.7 billion in damage to homes, roads and farms.
The United Nations warned Friday that humanitarian aid is running out in the hard-hit region.
This comes two weeks after the international organization and its partners launched an effort to raise $357 million to help those most affected -- of which only $19 million has been received, the U.N. said on its website.
Safe drinking water and emergency shelter materials could run out within weeks, while agencies on the ground have enough food for a month for the hundreds of thousands affected.
"It is tragic to see families displaced from the floods with no shelter and barely enough to survive on," said Fawad Hussein, a U.N. official focused on flood relief. "These families worry their children will go hungry, and without access to safe drinking water, they fear they will become sick from drinking contaminated water."

(CNN) -- Syrian opposition groups say they plan to announce details of a breakaway government as early as Saturday as reports surfaced of deadly military crackdowns against anti-government protesters.
Members of Syrian opposition groups meeting in neighboring Turkey on Friday plotted the creation of a National Council aimed at toppling the regime of President Bashar al-Assad, the Local Coordination Committees of Syria told CNN in an email.
The National Council leadership could be announced as early as Saturday, said the opposition group, which organizes and documents protests against the al-Assad regime.
Syria has been locked in a violent months-long uprising that has seen security forces clash with anti-government protesters calling for free elections and the end of al-Assad's rule.
Al-Assad, who has characterized the protesters as "armed gangs," has insisted his security forces are battling terrorists intent on targeting civilians and fomenting unrest.
The United States, the European Union and a number of Arab countries have called an al-Assad to end the crackdown and step down.

Tensions between the United States and Syria escalated after the Syrian ambassador to the U.S. was called Friday to the State Department over an attempted attack a day earlier in Damascus on American Ambassador Robert Ford, spokeswoman Victoria Nuland told reporters.
"The ambassador was reminded that Ambassador Ford is the personal representative of the president, and an attack on Ford is an attack on the United States," Nuland said.
About 100 pro-government protesters tried to storm a meeting between Ford and opposition leader Hassan Abdelazim, trapping Ford and others for more than an hour. Later, his convoy was attacked.
The al-Assad regime had earlier accused Washington of inciting "armed groups" into violence against its security forces.
Nuland said Ambassador Imad Mustapha was asked to compensate the United States for damage to the vehicles.
In a Facebook post Friday, Ford said he respected "peaceful protest" -- including by pro-government factions to express their opposition to him and U.S. policy -- but insisted that Thursday's incident was "not peaceful."
He described demonstrators wielding iron bars; throwing tomatoes, eggs and concrete blocks; attacking embassy vehicles; and trying to break into Azim's office.
"Americans understand that we are seeing the ugly side of the Syrian regime, which uses brutal force, repression and intimidation to stay in power," Ford wrote.
"We deeply feel for the Syrian families that are enduring the violence, killings and torture and pain. We hope that Syrians find solutions to the crisis soon, but we strongly doubt that the regime's terrorizing the population will end the crisis."
Syrian state-run media, citing the Foreign Ministry, reported Friday that "necessary measures" had been taken to protect Ford.
Taking a page from the success of Libya's National Transitional Council, Syrian opposition groups meeting in Istanbul worked together to bring the various groups under one opposition umbrella.
Among those expected to be represented by the National Council are the Muslim Brotherhood, the Assyrian Organization and the General Authority of the Syrian Revolution, the LCCS said.
The LCCS does not identify its membership out of a fear of reprisals by al-Assad's security forces. CNN cannot independently verify the claims of the group because the Syrian government has denied international journalists access to the country.
The meeting concluded the same day news broke that prominent anti-government activist Marwa al-Ghemyan was detained Friday by Syrian security forces at the Damascus airport.
Al-Ghemyan was detained as she was preparing to depart the capital and taken to a military security building, the London-based Syrian Observatory for Human Rights said in a statement. The opposition group, which documents Syria's anti-government movement, did not say how it confirmed her detention.
CNN cannot independently confirm the claim.
Al-Ghemyan was previously detained by Syrian forces on March 4 and released on March 21, the group said.
The violence escalated Friday across Syria -- with the government saying 13 security forces and three civilians were killed in clashes, while an opposition group said 23 people, mostly civilians, died in the fighting.
Twelve of the deaths occurred in the embattled Homs province, including six in Hama and its suburbs where anti-government protesters have taken to the street, the LCCS said. Three others were killed in clashes in the suburbs of Damascus, said the LCCS.
In the northeastern town of Qamishli, hundreds of demonstrators conducted a sit-in in front of Al-Rahmeh Hospital where they chanted for national unity and demanded the end of the regime, the group said.
In Idlib, a soldier was fatally shot for refusing to shoot at demonstrators, the LCCS said.

Manila, Philippines (CNN) -- Another typhoon made landfall in the Philippines on Saturday, just as the nation was recovering from deadly Typhoon Nesat.
Typhoon Nalgae, known locally as Quiel, slammed into the northern province of Aurora at about 9 a.m. Saturday, said Jun Galang, a local weather forecaster .
At least one person was killed in a landslide, authorities reported Saturday.
The powerful storm could wreak havoc on Central Luzon, a region north of Manila that was battered by Typhoon Nesat earlier this week.
Typhoon Nesat hit the Philippines on Tuesday, damaging 31 provinces and leaving at least 39 people dead. That storm has since moved on to China.
The new storm, Nalgae, had strengthened earlier Saturday to a super typhoon, packing maximum sustained winds of 240 kilometers per hour (149 mph). In addition, heavy rainfall was expected. Low lying areas and coastal areas could be hit with flash floods, according to the Philippine Atmospheric, Geophysical and Astronomical Services Administration.
Nesat was expected to leave the area by Sunday, forecasters said.

(CNN) -- The death toll from a car bomb attack in central Iraq on Friday grew to 10, Interior Ministry officials said Saturday.
The attack occurred during a funeral procession near the city of Hilla, south of the Iraqi capital.
Forty people were wounded by the attack.
The attack comes less than a week after four consecutive explosions rocked the city of Karbala, leaving 10 people dead and 70 wounded. All four blasts targeted civilians on their way to the Directorate of Travel and Nationality, police said.
Both Hilla to the south and Karbala to the southwest are about 90 to 100 kilometers (55 to 62 miles) from Baghdad

Islamabad, Pakistan (CNN) -- A security guard who killed a liberal politician in Pakistan over his remarks on its controversial blasphemy law has been convicted and sentenced to death, his defense lawyer told CNN.
Raja Shuja Ur Rehman said the court in the garrison city of Rawalpindi, near Pakistan's capital, Islamabad, also imposed a penalty of $2,250.
Police say Mumtaz Hussain Qadri, a policeman serving as a security guard at the time, shot dead Salman Taseer, the governor of Punjab province, on January 4 over his remarks on Pakistan's controversial blasphemy law in a market in Islamabad.
Police said Qadri was charged with murder and with committing an act of terrorism, because the shooting occurred in a public place. He was sentenced to death on both counts.
His lawyer said Qadri planned to file an appeal against the ruling in a higher court.
"It is an unjust decision, as the act of terrorism and the murder were not proved," Rehman told CNN.
Police have said Qadri confessed to gunning down the politician he was supposed to be protecting.
But Rehman said Qadri did not admit to the murder. The lawyer argued that Qadri's actions had not been a crime in the circumstances.
"I acted against a blasphemer per the guidelines of the Quran and the teachings of the Prophet Mohammed," Qadri told the judge, according to his lawyer. "I didn't kill an innocent person."
Since the shooting, Pakistan's hard-line religious groups have congratulated Qadri and held demonstrations calling him a hero. They have called for his release, while condemning anyone who tries to change Pakistan's blasphemy laws.
Qadri was also given a hero's welcome in jail, where several prisoners offered him their food and clothes.
His supporters also brought flowers and cards to the jail on Valentine's Day.
"Around 50 people stood outside the jail bearing flowers and Valentine's wishes for the assassin," Rehman said. "It wasn't clear whether jail officials delivered the flowers to Qadri."
The trial was conducted by Pakistan's anti-terrorist court, a special court set up to allow swift justice for terror suspects. It was held inside the jail where Qadri is being kept for security reasons.
Taseer, a successful businessman as well as politician, had spoken out against Pakistan's controversial blasphemy law, which makes it a crime punishable by death to insult Islam, the Quran or the Prophet Mohammed. The legislation has been criticized by some as being used to entrap minorities.
Police say that Taseer's family members have been receiving threats from militants since his assassination.
His son Shahbaz Taseer, who was taking care of his father's business interests, was kidnapped in the eastern city of Lahore, the governor's home town, last month.

(CNN) -- Afghan President Hamid Karzai dismissed calls for negotiations with the Taliban, saying neighboring Pakistan is the key to peace talks with the insurgency, according to a statement released Saturday by the presidential press service.
The comments came the same day Afghanistan's intelligence service said it provided evidence that the assassination of former Afghan President Berhanuddin Rabbani was planned in the Taliban-stronghold of Quetta, Pakistan.
Rabbani, who was spearheading the reconciliation process with the Taliban, was killed in an attack at his home on September 20.
"We have given the evidence to the Pakistan Embassy in Afghanistan to cooperate with us," Lutfullah Mashal, Afghanistan's intelligence service spokesman, told reporters.
Karzai believes any negotiations must be conducted with Pakistan "since the enemies sanctuaries and operating places" are there, the statement said.

(CNN) -- Authorities have found all 18 bodies of passengers and crew aboard a plane that crashed in western Indonesia, a search official said Saturday.
Rescuers reached the wreckage even though the search effort was hampered by bad weather, said Agus Wibisono of the National Search and Rescue Agency.
They had been searching for the plane after air traffic controllers lost contact with it Thursday morning shortly after it took off from an airport in North Sumatra.
It was bound for the Kutacane district in Aceh province when it crashed in the mountains in North Sumatra, said Henry Bakti, Indonesia's director general for air transportation.
Passengers included two children and two infants, Bakti said. Nusantara Buana Air owns the plane, which services destinations in Aceh.
Airplanes are the primary mode of transportation between Indonesia's scattered islands.
In May, a plane that crashed off the coast of Kaimana killed at least 15 people.
Indonesia's poor aviation record has led the European Union and the United States to blacklist a number of the country's small airlines, including Nusantara Buana Air