Firefighters save dozens of Perth homes

Firefighters have saved more than 80 homes after battling through the night to contain a bushfire in Perth's southern suburbs.

An emergency warning was issued for parts of Atwell, Aubin Grove and Banjup on Tuesday, with some residents told it was too late to leave.

The blaze has since been brought under control and no longer poses a threat to lives and homes.

All roads are now open and more than 80 homes have been saved. The cause of the fire was unknown, the Department of Fire and Emergency Services said on Wednesday.

A separate bushfire in nearby Bibra Lake was extinguished overnight after threatening the Adventure World theme park and Cockburn Ice Arena.

Both venues have been cleared to reopen on Wednesday.