A SMOKE alert has been issued for people in the vicinity of Woolly Bush Loop and surrounding areas in Woodridge.
The Department of Fire and Emergency Services (DFES) said the smoke was due to a fire in a shed attached to a house.
A DFES spokeswoman said the shed contained some vehicles.
Twelve crews including Yanchep and Butler as well as two from Gingin West are attending the fire.
The smoke is expected to clear later today.
