A single-vehicle crash on Farm Road 2150, about four miles south of Mt. Vernon, resulted in serious injuries to a Mt. Vernon man.
According to the Missouri State Highway Patrol, the crash occurred at 8:30 p.m. on Sunday, when the driver of a 1988 Yamaha dirt bike, John L. Jiles, 33, of Mt. Vernon, ran off the roadway and struck a metal corner post.
Jiles was transported to Mercy Hospital in Springfield by helicopter.