Fire crews have spent the morning at the scene of a rubbish fire at the Rockingham Shopping Centre.
It's understood a rubbish truck was forced to dump its load in the car park after it caught alight just before 6am.
Witness Russell Hendy told West Coast Radio he called emergency services after seeing thick black smoke and flames coming from the car park.
"I live 200 metres away, I thought there was a house on fire," he said.
"I rushed down there thinking I might have to help someone and I got there and there was a load of rubbish on fire in a garbage truck.
"He's (truck driver) emptied it out in the car park and there was explosions and fire."
Firefighters managed to extinguish the blaze within an hour.
The cause is unknown.
Video: Russel Hendy/Supplied
Mandurah Crab Fest boasts huge range of free, family friendly entertainment
Fuel prices surge in Perth, Mandurah
Teen boys charged over Mandurah burglaries
Tragic update in search for missing man Robert Snyder
Premier Roger Cook to leave Kwinana electorate, move to Perth
Mandurah Marine Rescue's new vessel named in memory of nun who survived 1959 boating accident
Teen dies in motorbike crash at Waroona Dam
Shark alert issued after whale carcass reported at Preston Beach
Kwinana businesses to refuse serving students during school hours