EXTRA firefighters have been called in to battle a bushfire in Sawyers Valley that has burnt through 850ha since this morning.
A bushfire advice remains in place for people 10km south of Great Eastern Highway near Gorrie, Chambers and Firewood roads in the Shire of Mundaring.
The bushfire is moving fast in a westerly direction. It is out of control and unpredictable.
About 150 Parks and Wildlife Service, Bush Fire Service and DFES firefighters are fighting the blaze and building containment lines.
Aerial support has been sent to assist ground crews
There is currently no threat to lives or homes but residents are advised they need to be aware and keep up to date in case the situation changes.
The fire started near the intersection of Gorrie and Chamber roads in Mundaring. The fire was reported at 8.30am.
The cause of the fire is unknown.
Parks and Wildlife Service is managing the fire. Roads have not been closed but motorists are asked to avoid the area, reduce speed and drive carefully due to smoke.
WHAT TO DO:
Stay alert and monitor your surroundings.
Watch for signs of a bushfire, especially smoke and flames.
Close all doors and windows, and turn off evaporative air conditioners but keep water running through the system if possible.
Read through your bushfire survival plan.
If you do not have a plan decide what you will do if the situation gets worse.
Be extremely careful when driving through the area.
Turn your headlights on and drive slowly.
Watch for emergency services personnel and follow their directions.
KEEP UP TO DATE:
Visit www.emergency.wa.gov.au, call 13 DFES (13 3337), follow DFES on Twitter: https://twitter.com/dfes_wa, Facebook: https://facebook.com/dfeswa/, listen to ABC Local Radio or listen to news bulletins.
The next update will be provided by 4pm today unless the situation changes.