Peshawar, Nov 16 - At least four people were killed and 25 injured Monday morning when a suicide bomber struck near a police station in the outskirts of this Pakistani city, an official said.

The blast took place at 7.45 a.m. in Badhbeer, which is located in the outskirts of the North-West Frontier Province capital.

District Coordination Officer (DCO) Peshawar Sahibzada Anis said four people died in the blast, Geo News reported.

The blast was so powerful that a nearby mosque collapsed, Anis said, adding some people may be trapped under the rubble.

The wounded include children and women.

A police official said that the blast was a suicide attack.

According to sources, the suicide bomber was taking his explosive-laden car to some sensitive place. On being asked to pull over, he blew himself up instead.

Pakistan has been struck by a series of terror attacks since Oct 5, when the latest wave of violence was unleashed by the Taliban which is battling the army in the rugged terrain of South Waziristan.