A rider on a motorcycle received serious injuries early Sunday evening west of Highway C near the Texas and Dent counties line.
Troopers said a 2006 Yamaha V-Star operated by Stephen P. Morgan, 42, of Lenox, lost control, traveled off the left side of Highway H and overturned.
Both the driver and a passenger, Branda A. Gamblin, 44, were ejected. Both were wearing helmets.
Gamblin was flown with serious injuries to University Hospital in Columbia.