A Curfew was imposed Monday following a bomb blast in a market in the northwestern Pakistani district of Buner, according to local TV reports.

Shops at the Swari market closed after the bomb blast in the main city of Buner in the North West Frontier Province (NWFP), where security forces have launched an operation against Taliban militants since late April.

At least three policemen were killed and several others were injured in the explosion near a check post, the private Express TV reported.

The bomb was planted in a parked car and detonated with a remote device, it said.???

(Xinhua News Agency June 29, 2009)