A woman who reportedly got into an argument with the driver of a car on Route 77 on Saturday night suffered a head injury after jumping from the car, according to the Genesee County Sheriff's Office.
The initial report received by the Sheriff's Office was that Gina Schmidt, 21, was shoved from the moving car.
Investigators now believe the 21-year-old Oakfield woman jumped.
Driving the 2003 Dodge Stratus northbound on Route 77 near Route 5 at 9:25 p.m. was Derrick Jackson, 23, of Oakfield.
Schmidt was a passenger in the back seat when she reportedly jumped.
Jackson did not stop and continued driving north.
A Mercy ground ambulance transported Schmidt to ECMC.
No charges have been filed.
The investigation is being handled by Deputy Patrick Reeves, Deputy Tim Wescott and Sgt. Greg Walker. Assisting at the scene were the State Police and the Indian Falls and Pembroke fire departments.