More than 40 others - mostly police officers - were wounded in the early morning attack in Pakistan's southern city of Karachi.

 

The bus was hit by an explosives-laden vehicle as it was leaving a police training centre, officials said.

 

Karachi is Pakistan's biggest and most lawless city.

 

Hundreds of policemen have lost their lives fighting militants³ and criminal gangs linked to the city's main ethnic⁴, political and sectarian（宗派的） parties, the BBC's Shahzeb Jillani reports from the city.

 

Thursday's attack - which no one has yet claimed responsibility for - is one of the bloodiest⁵ on police in Karachi in recent months, our correspondent says.

 

Police said more than 50 officers were on board the bus as it prepared to leave a training centre in the east of the city.

 

"Apparently⁶ an explosive-laden car hit the police van transporting officials," police official Muhammad Iqbal told the AFP news agency.

 

Local TV channels showed broken glass and pieces of vehicles scattered⁷ around the scene of the blast.

 

Doctors at the city's Jinnah hospital confirmed they had received 11 bodies and said at least 10 of the wounded officers were in a critical condition.

 

The latest attack comes amid talks between the government and the Pakistani Taliban to try and negotiate a peace deal.

点击收听单词发音