An unnamed 14-year-old male from Thornfield was seriously injured when he fell from the tailgate of a truck and struck his head.
The juvenile was transported to a Springfield hospital by an air ambulance.
The vehicle was being driven by 36-year-old Ryan Graham of Thornfield.
The accident happened at 5:02 Saturday (2/29) on County Road 830, three miles east of Thornfield in Ozark County.