A series of bushfires were believed to have been deliberately lit in Secret Harbour at the weekend.
The first fire started in scrub off Secret Harbour Boulevard on Friday night, before another sparked up on Saturday night in the same area.
On Sunday afternoon, firefighters were called out to another blaze in Cud Swamp off La Spezia Drive.
Anyone who saw any suspicious activity should contact Crime Stoppers on 1800 333 000.
PIC: Secret Harbour Volunteer Fire & Rescue/Facebook