Six civilians were killed Tuesday when helicopter gunships shelled suspected Taliban hideouts in a tribal area where fierce clashes have left more than 150 people dead, officials said. The deaths happened in the troubled Bajaur region bordering Afghanistan, a haunt for Al-Qaeda and Taliban militants where troops have been fighting fierce battles with rebels for the past week. Five civilians were killed and three others injured when helicopters pounded suspected militant positions Tuesday in Takht village, 10 kilometres (six miles) south of Khar, the main town in Bajaur, officials and residents said.