On Thursday morning, Arson Squad detectives will commence their investigation into a suspicious house fire in Dalyellup on Wednesday night, July 20, 2016.
About 11.35pm police and department of fire and emergency services were call to the house on Tonkin Fairway.
It is estimated the fire caused between $250,000 to $300,000 worth of damage to the property.
Police would like to speak to anyone who may have seen suspicious activity in the Tonkin Fairway area last night around 11.30pm.
Anyone with information is asked to call Crime Stoppers on 1800 333 000 or make a report online at crimestopperswa.com.au
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