Video: Huge bushfire tears through Perth suburb

Fire officials say that over 20 properties are under threat from the blaze

At its biggest, the fire had a 2km front (AP)

A massive fire has been captured on film tearing through the city of Swan in Western Australia.

The video shows a wall of flames reaching high into the air of the city that sits to the north-east of the Western Australian capital Perth.

According to officials, the fire started in Whitman Park at 1pm on Sunday and soon spread throughout the surrounding areas of Brabham and Henley Brook, leading to dozens of homes coming under threat.

Since then several fire crews have fought to contain the blaze, using water-bombing helicopters to try and put out the flames.

“There is a possible threat to lives and homes as a fire is approaching the area and conditions are changing.”

“You need to leave or get ready to actively defend.”

According to the warning, at its peak, the fire front was 2km wide and moving in a north-easterly direction.

It is still unknown how the fire was started.