At least six policemen were killed and several others injured as terrorists attacked a police station in Kolachi area of Dera Ismail Khan, an official said on Saturday.
Reportedly, three unidentified miscreants armed with heavy weapons entered the police station. The attackers opened fire on the policemen while a number of hand-grenade explosions were also heard inside the building.
The attackers closed the gates of the police station and took the policemen hostage. Extra personnel were called soon after the incident occurred, who surrounded the building and had an exchange of fire with the terrorists.