At 4:45 a.m. this morning Headingley RCMP responded to a single-vehicle collision on the Trans-Canada Highway just east of Gaol Road. An eastbound car entered the south ditch and rolled. The driver and lone occupant of the vehicle, a 17-year-old female from the RM of Cartier, was ejected from the car and was deceased on scene. Alcohol does not appear to be a factor. Police report the seatbelt didn't appear to be in use at the time of the collision.