MANSEHRA At least four policemen were killed and one other got injured when militants attacked their check post here at Ghazi Kot area on Friday morning. The deceased included Naseem, Naeem, Muhstaq and Zahid, while the injured cop was identified as Faisal who was shifted to District Headquarter Hospital Mansehra. AFP adds: Gunmen attacked a police checkpoint in Mansehra at dawn on Friday, killing four policemen before speeding away in a getaway vehicle, police said. The attackers sprayed bullets at policemen sheltering from rain inside a check post building in Ghazi Kot town in the mountainous Mansehra district. Four policemen were killed on the spot. They were taking shelter inside the check post when rain started. One injured is still unconscious, Zulfiqar Jadoon, a police official told AFP by telephone from the scene. This is a clear act of terrorism, Jadoon said. The gunmen arrived in a vehicle and fled after the attack, he said. An intelligence official confirmed the incident and blamed miscreants. A wave of suicide and bomb attacks across the country has killed more than 3,300 people since 2007. Blame has fallen on Taliban and Al-Qaeda-linked militants. Mansehra is a relatively peaceful district in the highly volatile northwest, but militants armed with guns and grenades stormed offices of a US-based Christian charity in the district killing six aid workers in March.