At least 17 people have been killed and about 40 injured in a suicide car bomb attack on a police station in north-western Pakistan.
Police said rescue workers and police officials were digging through the rubble at the station in the town of Lakki Marwat in Khyber Pakhtunkhwa province
Nine police officers, four adult civilians and four children going to school died in the attack.
Lakki Marwat sits on the main road and rail link between Punjab province, Pakistan's largest and most prosperous, and North and South Waziristan provinces.
A Pakistani army offensive pushed many militants out of South Waziristan in October. The militants still control much of North Waziristan, where US drone aircraft have been conducting a campaign of targeted killings.