At least three persons were killed while two others sustained injuries in a car accident near Liberty Market here on Wednesday, police said. The incident occurred when the car collided with a trailer here. As a result, three persons died while two others sustained injuries. After the incident the rescue teams reached on the spot and shifted the injured to Services Hospital, Lahore. Police said that the deceased were the resident of Gari Shao near Habibullah Road. Police registered case and started investigation.