A fire's broken out at a wreckers yard at Wingfield, north of the city.
A number of gas cylinders exploded at the property on South Terrace after 9am.
The flames spread to dozens of wrecked cars and were so intense the MFS couldn't get too close.
It's understood at least one person has minor burns.
Firefighters say they're getting on top of it.
With a large plume visible over the northern suburbs, locals are being told to close their doors and windows until the smoke has passed.