A powerful car bomb ripped through a market in northwestern Pakistan on Friday, killing at least 11 people, police said. The explosion in Matni bazaar near the city of Peshawar injured another 20 people and damaged 30 shops, senior police official Abdul Sattar reported by Dawn online as saying. Khan said the dead and wounded had been transported to a hospital, and some of the injured were listed in a critical condition. No one claimed responsibility for the attack, It said. Peshawar has witnessed scores of such attacks, most blamed on Pakistani Taliban against whom the military has launched several offensives in recent years. Local tribal elders have assisted the military in its campaigns.