WorkSafe is investigating the work-related death of a 68-year-old man on a farm at Crooked Brook, near Dardanup south of Bunbury, last night.
The farmer was believed to have left his house to move cows from one paddock to another.
When he did not return, a family member went to look for him and found him under an upturned quad bike.
Inspectors will travel to the site this morning to investigate the circumstances.
WorkSafe investigates serious work-related injuries and deaths in WA with a view to preventing future incidents of a similar nature.
