People near Bridgetown are being urged to leave immediately as a "deadly" fire burns out of control, threatening homes.
An emergency warning has been issued for residents in the area south of Spring Valley Road, north of Southampton Road, west of Maranup Ford Road and east of the area between Glendarden Road and Cassia Road.
The fire that started at River Road yesterday has crossed the river and is burning out of control, in a south-easterly direction.
The Department of Fire and Emergency Services warns that residents’ lives are in danger and they needed to act immediately to survive.
"If the way is clear, leave now for a safer place. Do not wait and see, leaving at the last minute is deadly," the DFES warning says.
People in the Shire of Bridgetown-Greenbushes that decide to leave are to place a green bag on their mail box or gate so fire fighters know they have left.
More than 130 firefighters, four water bombers and a helicopter are at the scene.
Residents are advised to leave via Southampton Road and take Brockman Highway or Maranup Ford Road to Bridgetown.
If people are unable to take shelter in their homes, they should head towards the nearest open space, swimming pool or dam.
A 'watch and act' warning has also been issued for people living in the area south of Hay Road, north of Brockman Highway, west of South Western Highway and east of Wetherley Road, including the Greenbushes townsite.
DFES said changing conditions meant there was a possible threat to lives and homes and residents should get ready to leave or actively defend their homes.
Parts of Southampton Road, Maranup Ford Road and Spring Gully Road are closed, as well as parts of the Bibbulmun Track.