Residents gather at a bus station as they try to flee from the outskirts of Mingora, the main town of Pakistan's Swat valley, which lies close to Pakistan's lawless tribal belt bordering Afghanistan November 1, 2007. Pakistani security forces killed up to 70 Islamist militants in latest fighting in a restive northwestern region on Thursday, a provincial official said, taking the death toll to more than 180 in a week of violence. [Agencies]