QUETTA - Three people including a child were killed and another wounded apparently in an incident of sectarian killing in Quetta on Wednesday. According to police sources, unidentified people sprayed a volley of bullets on a yellow cab with sophisticated weapons at Arbab Karam Khan Road of Quetta and managed to flee from the scene. As a result, three people including Mehdi Hassan, (6), Muhammad Hussain and Chaman Ali died on the spot after receiving critical bullet wounds while Suleman Ali (25) sustained injuries.