Police say gunmen ambushed a police patrol in Pakistan's volatile northwest, killing four officers, AP reported.
Senior police official Nisar Khan says two victims died at the spot on the outskirts of Peshawar city early Monday, while two others died at hospital from multiple bullet wounds.
No group immediately claimed responsibility for the ambush, but Taliban militants in the region frequently target security forces.
The police were patrolling a road that leads to the Khyber tribal region, an area where militants often attack trucks supplying U.S. and NATO forces in neighboring Afghanistan.