A bomb exploded close to a police station in NWFP town on Friday, injuring four people including a police intelligence official, police said. The blast came amid a spate of violence that has gripped the country since troops stormed the radical Red Mosque in Islamabad last month killing scores of people.
The "low-intensity" bomb was planted in a bicycle shop in Lakkai Marwat, 160 km (100 miles) south of Peshawar, local police officer Usman Ghani said.