Fire investigators estimate as much as $2 million damage was caused by a factory fire near Bunbury in the early hours of Thursday morning.
Police and Department of Fire and Emergency Services officers were called to the Tillage King Machinery factory on Verschuer Place, Davenport just after 1am.
A Department of Fire and Emergency Services spokesperson said a triple zero caller noticed smoke and flames at the factory and crews were on the scene within minutes.
Volunteer, Bushfire and Career firefighters had the fire contained by 2.50am and extinguished just before 4am.
The factory was home to a lot of farming machinery and equipment.
The DFES spokesperson said about half the inside of the factory was burnt with smoke and water damage throughout.
The cause of the fire is not yet known.