ISLAMABAD, April 14 (Xinhua) -- At least one policeman was killed and five others were injured when unidentified gunmen opened fire on a police vehicle in Pakistan's northwestern Khyber Pakhtunkhwa province on Monday, official sources said.
The incident took place at around 0850 hours local time (0350 GMT) in Hangu District, where the police team was en route to perform security duties for the anti-polio campaign, the sources told Xinhua on condition of anonymity.
The attackers ambushed the police mobile and opened indiscriminate fire, leaving six personnel injured.
The wounded were shifted to a nearby hospital, where one of them later succumbed to injuries, the sources added.
Security forces rushed to the scene, cordoned off the area, and launched a search operation to track down the assailants.
No group has claimed the attack yet. ■