A suspected US missile strike, meanwhile, killed four alleged militants in the country's northwestern tribal belt, officials said.
The explosion in Quetta underscored the poor security conditions in Pakistan, a US ally where sectarian violence remains a problem even as Al-Qaeda and Taleban militants pose a growing - and linked - threat. It wasn't the first time that Shiite mourners have been attacked at hospitals in Pakistan, evidence of a tactic in vogue for their Sunni extremist foes.
Gunshots rang out after the explosion at the Civil Hospital, and rescuers carried away the dead and wounded, TV footage showed.
Among the dead was a cameraman working for Pakistan's Samaa TV, said Saifuddin Khan, a hospital official. Two policemen also died, while 35 people were wounded in the apparent “sectarian attack,” said Qazi Abdul Wahid, a senior police investigator.
Journalists were at the hospital covering the aftermath of Friday morning's shooting of the bank manager, who came from a prominent Shiite family. A gunman shot him as he stepped out of his car outside the bank on a major city road, officials said.
The emergency room was full of his friends and relatives when the bomber struck at the gate, police official Mohammad Sabir said.
Quetta is the capital of Baluchistan province, and it is believed to be a major center for the leadership of the Afghan Taleban. However, the violence that occurs in Baluchistan has been blamed on Baluch separatist groups or tensions between Sunni and Shiite Muslims.
In February, suspected Sunni militants bombed a bus carrying Shiite worshippers and two hours later attacked a hospital treating the victims, killing 25 people and wounding 100 in the southern Pakistani city of Karachi.
And in August 2008, a suicide blast outside the emergency ward of a hospital crowded with Shiite Muslim mourners in the volatile northwest town of Dera Ismail Khan killed at least 27 people, including two police.
Suspected Sunni extremists also have attacked funeral processions of Shiite Muslim mourners.
Extremist Sunnis and Shiites in Pakistan have targeted each other's leaders in violence that dates well before the 2001 terrorist attacks in the United States. But several of Pakistan's Sunni extremist groups also are allied with the Taleban and Al-Qaeda, who view Shiites as infidels.
The Sunni-Shiite schism over the true heir to Islam's Prophet Muhammad dates to the seventh century.
The alleged missile strike took place in the Toorkhel area in North Waziristan, a tribal region filled with Al-Qaeda and Taleban fighters focused on attacking US and NATO troops across the border in Afghanistan.
At least four suspected militants were killed, said Noor Ahmad, a government official, and two intelligence officials who spoke on condition of anonymity because they were not authorized to speak on the record.
The exact identities of the dead were not immediately known.
The US has frequently targeted North Waziristan in its campaign to kill Al-Qaeda and Taleban leaders using missiles. Washington rarely discusses the covert assassination program. Pakistan publicly protests the missile attacks as violations of its sovereignty but is widely believed to secretly aid them.
- Associated Presss Hussain Afzal in Parachinar and Ishtiaq Mahsud in Dera Ismail Khan contributed to this report.
