At least 15 people were killed and 56 injured on Friday after a bomb exploded inside a mosque in northwestern Pakistan. Five police officers were among those killed as the attack happened near a building housing police offices. The attacker rammed an explosives-laden vehicle into the mosque in Kohat, a district in Khyber Pakhtunkhwa province bordering Afghanistan, said the provincial police chief, Zulfiqar Hameed. The attack left the outer wall of the police offices collapsed and the mosque badly damaged.