gangs have been embroiled in a bloody feud in recent months, largely fuelled by the defection of Michael Xanthoudakis from the Rebels to the Rock Machine.

BN- A car believed to be owned by a member of the Rock Machine bikie gang was sprayed with bullets in Perth's southern suburbs early this morning.

A police spokesman said officers were called to Marden Road in Thornlie about 3.30am after a member of the public reported hearing gunshots.

He confirmed shots had been fired but it appeared nobody was hurt.

A beige sedan parked in the front yard of a house was hit in the drive-by shooting. There are bullet holes in the left rear window and back window. There is also damage to the outside of the house.

Last month during a police crackdown on bikies across Perth, detectives cordoned off Marden Road after a live WWII mortar round was found in a house.

Forensic officers are at the scene examining the verge and police are stationed at both ends of the street.

The latest incident follows a brawl between rival bikie gangs, Rock Machine and Rebels, at a weekend music festival.

Eight move-on notices were issued at the Supafest music festival at Arena Joondalup after disputes between gang members turned into physical confrontations.

It is understood no charges were laid.

Tensions continued to run high yesterday when a fight broke out in a Kingsway shopping centre, just metres from families and children.

Witnesses said the gang members used whatever they could get their hands on, throwing chairs and food as the fight progressed.

The gangs have been embroiled in a bloody feud in recent months, largely fuelled by the defection of Michael Xanthoudakis from the Rebels to the Rock Machine.