WA Police have confirmed a car has rolled over on Forrest Highway near Preston Beach, in the Shire of Waroona.
A WA Police spokesman said a man is believed to have minor injuries from the incident, which happened about 1.10pm, near Johnston Road.
The police spokesman said a nurse was at the scene and police and St John Ambulance paramedics were on their way.
He said there may have been another car involved.
Debris is on the road and drivers are warned to be cautious near the incident.