A pedestrian was struck by an oncoming vehicle on Highway 27 in Trion on Monday evening.  Chattooga County Sheriff Mark Schrader told WZQZ on Monday night that it appears that the pedestrian stepped out in front of vehicle, just north of B&B Auto Sales.  The pedestrian was seriously injured and was airlifted by Lifeforce to a Chattanooga hospital.  The identity of the victim was not immediately available.  WZQZ will have more information as it becomes available.