In Pakistan, seven people have been killed and more than 20 wounded in a car bomb attack at a police station in the city of Kohat. A senior police official said a suicide bomber had driven a vehicle into the rear wall of the police station. He described the incident was a response to a military operation that is underway in the area.<br/><br/>On Saturday, two suicide bombers killed more than 40 people and wounded at least 60 at a displaced people's camp in the same area. That attack occurred about 40km away from the site of today's attack. On Friday a suicide attack at a hospital in the south-west Pakistani city of Quetta killed at least 10 people and injured 35 more.<br/><br/>Kohat is a town in the North West Frontier Province where the Pakistan military has stepped up its offensive against the Taliban in recent weeks. The fighting has caused a flood of displaced people to pour into camps. More than 250,000 people are registered as internally displaced people in the towns of Kohat and Hangu after fleeing the fighting between government troops and the Taliban in Orakzai and Kurram, two districts in the country's tribal region.