A car bomb Friday killed eight Pakistanis in the southwest city of Quetta, which is the capital of Baluchistan province neighbouring Afghanistan and Iran, police said. The car exploded in front of the house of the son of a former federal minister, Naseer Mengal, causing the deaths of eight people and wounding at least 18 others. The police officials said that it was unclear whether the driver was inside the car or left it after parking. \"Eight people have been killed in the car blast and 18 others are injured. We don\'t know whether the driver was inside the car or not,\" Nazir Ahmad Kurd, a senior police official told AFP. Police said that the majority of the people killed in the blast were passersby. \"We are facing difficulties to know about the nature of the blast because many of the witnesses who were present at the scene have been killed,\" said Kurd. Baluchistan is gripped by a regional insurgency for self-determination. It is also a flashpoint for Taliban and sectarian violence.