Four people were killed when some unknown gunmen opened fire at a car carrying four people in Pakistan's southwest district of Turbat on Saturday morning, local media reported. Quoting unidentified army sources, local TV Express said that the incident happened at about 11:10 a.m. (local time), when some unknown militants ambushed and attacked the car in Tump area of Turbat, a main district in the country's southwest Balochistan province. The assailants set the car on fire following the attack, and fled to unidentified location. Police and paramilitary troops cordoned off the area and a search operation in the surrounding area has been kicked off. No group has claimed responsibility for the attack yet.