Coolbellup Structure Fire
Emergency services were called to the home on Dion Place around 3:20am, after the occupants were woken by the sound of an explosion and saw a gazebo in their backyard on fire.
The gazebo and contents were destroyed by the fire and the cost of the damage is estimated at $45,000.
The cause of the fire is believed to be deliberate and investigators would like to speak to anyone who was in area around the time of the fire, or earlier in the evening who saw any suspicious activity, persons or vehicles.
Anyone with any information is asked to call Crime Stoppers on 1800 333 000 or make a report online at www.crimestopperswa.com.au. Callers may remain anonymous if they wish.
Rewards of up to $50,000 are available for information that leads to the identification and conviction of an arsonist.