The attacker rammed a pick-up into a police station in Lakki Marwat town, in the Khyber region south of Peshawar.

Books and a schoolbag could be seen in the wreckage. The dead included nine police officers.

Almost 100 people died in attacks on Shia Muslims in Pakistan last week, as violence resumed after severe floods. The Pakistani claimed those attacks.
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A police official in Lakki Marwat said Monday's car bomb was driven into the police station.

The bomber struck a school van before hitting the rear wall of the station.

A neighbourhood shop and mosque were also partially damaged.

Rescue workers and police officials are digging through the rubble left by the bombing.

Pakistan's security forces have been fighting Taliban and al-Qaeda militants based in the north-west of the country. Members of the Afghan Taliban are also based in the region.

Last week, nearly 100 people were killed in suicide bombings at Shia minority processions in Pakistan. On Friday, nearly 60 people were killed in Quetta - two days after bombings killed 31 people in Lahore.

The town of Lakki Marwat has previously been the scene of huge bomb attacks by militants, mainly on security personnel and local tribesmen allied to them.

The biggest took place on New Year's Day 2010, when more than 100 people died after a suicide bomber blew up a pick-up truck, after crashing into a crowd watching a volleyball match.