Update: A 10-hour crime spree by a group of teenagers across Perth’s south culminated in an out-of-control bushfire near Rockingham today after one of the teens allegedly set fire to a stolen car.

Armadale detectives were today interviewing six juveniles after a dramatic 40 minute police chase which ended with the use of stingers near Jarrahdale.

Police will allege the teenagers started their night in East Victoria Park where they threatened a homeowner with a knife before stealing several items including two televisions.

They then continued to Seville Drive, Seville Grove where at about 4.30am they allegedly assaulted a 27-year-old Sri Lankan student as he attempted to deliver papers to a local deli before stealing his van.

Minutes later the group allegedly bashed a 67-year-old man as he withdrew $100 cash from an ATM on Champion Drive also stealing his money and Ford Fairlane.

Soon after they travelled to Casuarina where, after a failed attempted burglary, they allegedly stole a 2010 Toyota LandCruiser which was spotted by police about 9.30am.

Several squad cars, the dog squad and the police airing were deployed for the chase which saw the group travel from Thomas Road in Rockingham to South Western Highway in Jarrahdale where they were stopped and apprehended. Police will allege two males from the syndicate broke off from the group at the time of the Casuarina robberies before later being spotted by police in a stolen Toyota Camry used in the first East Victoria Park robbery.

Police arrested one of the boys who had set fire to the car while the other ran from the scene about 10.30am.

The car fire spread quickly to adjoining bush.

Residents in Rockingham and the eastern part of Hillman were warned to prepare for a fire which was threatening lives and homes. Fire crews have since contained the blaze and brought it under control.

The Department of Fire and Emergency Services has downgraded the bushfire alert for people in the area bounded by Dixon Road, Day Road and Mandurah Road to "advice".

People in the area are being urged to stay alert and monitor their surroundings. There is no longer a threat to lives and homes.

The fire has burnt through about 12 hectares.

Dixon, Day and Mandurah Roads have been reopened.

The blaze was reported about 10.30am and 70 firefighters are on the scene mopping up. Fire crews will remain at the scene overnight monitoring and patrolling the area.

Three helitacs which helped battle the fire are no longer at the scene.

Anyone with information is asked to contact Crime Stoppers on 1800 333 000.

The West Australian

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