The Arson Squad is investigating a series of fires that were reported within minutes of each other in a number of southern suburbs.
The fires all happened during the evening of Wednesday, February 21 and police believe they were deliberately lit.
The first was reported about 8.30pm in the Henley Bushland Park on Henley Boulevard in Wellard.
About 8.33pm, a second bushfire was reported in bushland on Meares Avenue in Parmelia.
Another fire was then reported at 8.51pm in bushland off Wellard Road in Calista.
Just four minutes later, a fourth fire was started in bushland off Wellard Road in East Rockingham.
Firefighters managed to extinguish each fire before they were able to spread.
Strike Force Vulcan investigators wish to speak to anyone in the vicinity of the fires who saw any suspicious persons, vehicles or activity.
Anyone with any information relating to this fire, is urged to contact Crime Stoppers on 1800 333 000 or via www.crimestopperswa.com.au.
Any member of the public with CCTV, mobile phone or dash-cam vision of the above fire areas taken between 8pm and 9.30pm, can upload the vision direct to Strike Force Vulcan investigators via the link: https://wapf.au.evidence.com/axon/community-request/public/vulcan2023
Rewards of up to $25,000 are available for information that leads to the identification and conviction of an arsonist.
Mandurah included in Kate Miller-Heidke's 2027 tour
South Yunderup woman charged over dangerous police pursuit
Man assaulted with 'electrical device' while riding e-scooter in Mandurah
Kwinana Police seek whereabouts of Andrew Mulder
Golden Bay woman fronts court after allegedly lacing colleague's curry with snail pellets
Man jailed over violent rampage at Baldivis Hungry Jacks
Wanted man known to frequent Halls Head area
Man arrested after attacking child, elderly traffic warden in Baldivis
Mandurah land owners reminded to prepare properties ahead of bushfire season