A 14-year-old girl was hit by a car Monday morning while trying to get on a school bus. Knox County authorities were called to the scene on Ball Rd. Monday morning at 7:30 AM. A witness told officers that the bus had deployed it’s stop sign and was picking up the Karns High School student when she was struck by an SUV while crossing the roadway. The girl was transported by ambulance to UT Medical Center for possible head injuries. The driver of the SUV was cited for disregarding the bus’s stop sign.