The Ontario Provincial Police reported a car crash on Erie Street South in Leamington on Saturday afternoon.
Police say two vehicles collided and both appeared to have rolled over as a result of the crash. One of the occupants was sent to the hospital to be treated for serious injuries.
Erie Street South between Melrose Avenue and Pulford Avenue was closed for an investigation and the removal of both vehicles, but has since reopened.
No other details have been provided. Anyone with information is asked to call the OPP at 1-888-310-1122 or contact Crime Stoppers anonymously at 1-800-222-8477 (TIPS).