Pakistan police hit by bomb in north-west town of Kohat
Eighteen people have been killed and scores injured in a bombing near police headquarters in the north-western Pakistani town of Kohat, police say.
The car bomb exploded at the gates to the police family compound as people were breaking their fast during the holy month of Ramadan.
Buildings have collapsed and several people are feared trapped in rubble.
The blast comes a day after 19 people died when a suicide car bomb hit a police station in the north-west.
BBC correspondents say militants appear to be operating again following a lull in violence during the recent devastating floods.
Condemning Tuesday's blast, Interior Minister Rehman Malik said the government's resolve to eliminate terrorism from the country could not be shaken through such cowardly acts.
Kohat, about 50km (35 miles) south-west of Peshawar, is near militant strongholds in lawless tribal areas.
Kohat police spokesman Fazal Naeem told Reuters that the dead include women and children.