A bushfire emergency warning has been issued for parts of East Rockingham in Perth's south, with residents urged to act immediately as there is a threat to lives and homes.
The fire, reported at 1.50pm on Thursday, was moving fast in a southwesterly direction and was out of control and unpredictable, the Department of Fire and Emergency Services said in a statement.
The warning was in place for people bounded by Crompton Avenue, Ennis Avenue and Lake Cooloongup in parts of East Rockingham in the City of Rockingham.
"You are in danger and need to act immediately to survive. There is a threat to lives and homes."
Residents are being advised to leave for a safer place if the way was clear.
"Do not wait and see, leaving at the last minute is deadly," the warning says.
"If you cannot leave, you need to get ready to shelter in your home."
