At least 16 people, including five police personnel, were killed in northwest Pakistan on Friday when an explosives-laden car rammed into a police facility on Friday.
The incident occurred in Khyber Pakhtunkhwa province's Kohat city, with the vehicle ramming into an outer wall of the police facility and gunmen who accompanied it opening fire, provincial police chief Zulfikar Hameed said.
There was no immediate claim of responsibility.
The blast occurred close to a mosque where the police personnel, their family members, and other civilians were offering Friday prayers, a police statement said.
A gun battle was still raging between police and the attackers, and one assailant wearing an explosives-laden vest had been killed, the statement said.
The interior ministry said the "cowardly actions" of the attackers could not weaken the "nation's firm resolve".
Militancy in Pakistan's border areas has risen sharply in recent months, targeting mainly the military and police.
Islamabad says the militants use safe havens in Afghanistan to train and plan attacks in Pakistan. Afghanistan's Taliban government has denied the charge and said militancy is Pakistan's domestic problem.

Three students killed in Philippine school shooting, including gunman, officials say
India finds Nestle baby food sample substandard, takes legal action
Indonesia recovers 3 bodies from capsized ship in Java Sea
Gaza building collapse: Rescue efforts end after 45 saved
US officials made rare Myanmar visit to free American businessman
Trump derides EU pitch to Canada as 'laughable', threatens more tariffs
Australia cracks down on student and backpacker visas to curb migration
EU plans social media ban for under-13s
