Rescue workers move an injured policeman, after a bomb blast on a bus, on a stretcher outside Jinnah Postgraduate Medical Centre Hospital in Karachi
Rescue workers move an injured policeman, after a bomb blast on a bus, on a stretcher outside Jinnah Postgraduate Medical Centre Hospital in Karachi February 13, 2014. The explosion targeting the bus full of Pakistani policemen killed 11 and injured 33 near the southern port city of Karachi on Thursday, officials said, in the latest incident of violence while the government and the Taliban are engaged in peace talks. REUTERS/Akhtar Soomro (PAKISTAN - Tags: CIVIL UNREST CRIME LAW)
Rescue workers move the body of a police officer, who was killed in a bomb blast on a bus, in a mortuary van in Karachi
Rescue workers move the body of a police officer, who was killed in a bomb blast on a bus, in a mortuary van outside Jinnah Postgraduate Medical Centre Hospital morgue in Karachi February 13, 2014. The explosion targeting the bus full of Pakistani policemen killed 11 and injured 33 near the southern port city of Karachi on Thursday, officials said, in the latest incident of violence while the government and the Taliban are engaged in peace talks. REUTERS/Akhtar Soomro (PAKISTAN - Tags: CIVIL UNREST CRIME LAW)
Security officials collect evidence at the site of an explosion in Karachi
Security officials collect evidence at the site of an explosion in Karachi February 13, 2014. An explosion targeting a bus full of Pakistani policemen killed 11 and injured 33 near the southern port city of Karachi on Thursday, officials said, in the latest incident of violence while the government and the Taliban are engaged in peace talks. REUTERS/Athar Hussain (PAKISTAN - Tags: POLITICS CIVIL UNREST CRIME LAW)
A security official uses a tape to cordon off a site of a damaged police bus after an explosion in Karachi
A security official uses a tape to cordon off a site of a damaged police bus after an explosion in Karachi February 13, 2014. An explosion targeting a bus full of Pakistani policemen killed 11 and injured 33 near the southern port city of Karachi on Thursday, officials said, in the latest incident of violence while the government and the Taliban are engaged in peace talks. REUTERS/Athar Hussain (PAKISTAN - Tags: POLITICS CIVIL UNREST CRIME LAW)
A security official prevents members of media from approaching a damaged police bus at the site of an explosion in Karachi
A security official prevents members of the media from approaching a damaged police bus at the site of an explosion in Karachi February 13, 2014. An explosion targeting a bus full of Pakistani policemen killed 11 and injured 33 near the southern port city of Karachi on Thursday, officials said, in the latest incident of violence while the government and the Taliban are engaged in peace talks. REUTERS/Athar Hussain (PAKISTAN - Tags: POLITICS CIVIL UNREST CRIME LAW)
Security officials stand near a damaged police bus at the site of an explosion in Karachi.
Security officials stand near a damaged police bus at the site of an explosion in Karachi February 13, 2014. An explosion targeting a bus full of Pakistani policemen killed 11 and injured 33 near the southern port city of Karachi on Thursday, officials said, in the latest incident of violence while the government and the Taliban are engaged in peace talks. REUTERS/Athar Hussain (PAKISTAN - Tags: POLITICS CIVIL UNREST CRIME LAW)
Blast aimed at Pakistani police bus kills 11, wounds 33
PAKISTAN-BLAST/:Blast aimed at Pakistani police bus kills 11, wounds 33
Members of a civil society light candles for peace against terrorist attacks in the country in Lahore
Members of a civil society light candles for peace against terrorist attacks in the country in Lahore February 12, 2014. REUTERS/Mohsin Raza (PAKISTAN - Tags: POLITICS CIVIL UNREST)
Members of a civil society light candles for peace against terrorist attacks in the country in Lahore
Members of a civil society light candles for peace against terrorist attacks in the country in Lahore February 12, 2014. REUTERS/Mohsin Raza (PAKISTAN - Tags: POLITICS CIVIL UNREST)
Members of a civil society light candles for peace against terrorist attacks in the country in Lahore
Members of a civil society light candles for peace against terrorist attacks in the country in Lahore February 12, 2014. REUTERS/Mohsin Raza (PAKISTAN - Tags: POLITICS CIVIL UNREST)