A 22-year-old Osage Beach man suffered serious injuries following a single-vehicle accident Monday afternoon on Route M.M. near Hickory Hollow Road in Camden County. The Missouri Highway Patrol reports that a car driven by Dayton J. McDonough-Armstrong ran off the right side of the road, struck a ditch, and overturned, ejecting him from the vehicle. McDonough-Armstrong was airlifted to University Hospital in Columbia.