At least six people were killed and several other wounded in a car bomb attack targeting security forces in Pakistan's southwestern city of Quetta, according to police. "It was a car bomb blast, at least six people have been killed and several others were injured," Khalid Manzoor, a senior police official told AFP on Wednesday. Mohammad Amin, another police official in Quetta confirmed the attack. Quetta is the main town of Baluchistan province, which borders Afghanistan and Iran, police said.