Busselton detectives are seeking information on a house fire in West Busselton at the weekend.
The fire at a Whitton Street house was observed by patrolling police around 2.30am on February 16.
Police said the rear of the house was destroyed in the blaze and the property was unoccupied at the time.
Arson Squad officers attended the scene and believe the fire may have been deliberately lit.
Anyone who may have witnessed any suspicious activity in the area is asked to call Crime
Stoppers on 1800 333 000.