Three local teenagers were killed in a one vehicle accident south of Union Thursday morning. The State Highway Patrol says it happened at 2:00am on Porterford Road at Cardinal Lane. The Patrol says 19 year old James Curran of Union was southbound when he ran off the road and struck a culvert and a tree. Curran and a passenger, 19 year old Derek King of Beaufort were pronounced dead at the scene. Another passenger, 18 year old Cole Weddle of Union died at Mercy in Creve Couer just before 7:00am. Two other passengers, 19 year old Isaac Clark and 19 year old Lucas Schulze of Union, both suffered serious injuries.