Possible links to organised crime are being examined after a fire that caused extensive damage to a Melbourne gym.
A car was used to crash through the front door of a Dandenong gym shortly after 3.30am on Sunday.
Victoria Police says those inside the vehicle then poured accelerant through the building before setting it on fire.
A burning car, believe to be linked to the fire, was located in a nearby street.
Detectives are treating the incident as targeted and are investigating whether the blaze is linked to a series of arson attacks by Middle Eastern Organised Crime groups and outlaw motorcycle gangs.