Policemen lift a damaged police van from a blast site in northwest Pakistan's Peshawar on Feb. 10, 2013. At least five policemen were injured in the bomb attack targeting the police van patrolling on road in Peshawar on Sunday night, local media said. (Xinhua/Umar Qayyum)

A rescuer works in a damaged police van after a blast attack in northwest Pakistan's Peshawar on Feb. 10, 2013. At least five policemen were injured in the bomb attack targeting the police van patrolling on road in Peshawar on Sunday night, local media said. (Xinhua/Umar Qayyum)

An injured policeman receives medical treatment at a hospital after a blast attack in northwest Pakistan's Peshawar on Feb. 10, 2013. At least five policemen were injured in the bomb attack targeting the police van patrolling on road in Peshawar on Sunday night, local media said. (Xinhua/Umar Qayyum)