At least six passengers were killed and a woman sustained injuries in a head-on collision between a NATO tanker and a car at Chaman Road in Quetta on Friday. According to Levies officials, accident occurred when a yellow cab collided with a tanker at Yaro area on Chaman Road, killing six persons including a woman, reported a private TV channel. Dead and an injured woman were taken to nearby Civil Hospital, Pashin. Three of the victims were identified as car driver Ubaidullah, Mohammed Nawab and Anwar Mohammed while the identity of remaining three persons is not yet clear.