An 11 year old girl from Tulsa, Oklahoma suffered head injuries when the 4-wheeler she was riding flipped over and landed on top of her. The 11 year old and a 13 year old were riding the 4-wheeler on private property off of Highway 215 near the Yale community when the operator hit a small ditch. Both were thrown from the 4-wheeler. The victim was transported to Johnson Regional Medical Center and flown to Tulsa Children's Hospital for further treatment.