Emergency personnel responded to a rollover crash in the area of Route 3 and Crook Road south of Waterloo shortly after 8:30 a.m. Saturday.
It was determined that the crash, involving a red sedan, had occurred sometime overnight and was not reported to police. There were no occupants around the vehicle upon police arrival.
The Monroe County Sheriff’s Department is still investigating the crash, but the driver of the car has been identified as Katy Polacek, 21, of Waterloo. She was taken to a St. Louis hospital for treatment of facial injuries sustained in the crash.