POLICE are trying to trace a dark grey hatchback car that may have been used by men who attacked a family with a power tool in Yokine.

About 4pm on June 6 a man in his 30s returned to his Frape Street home to find two men inside. The men assaulted him with a power tool and other blunt objects, before binding his hands behind his back.

About 30 minutes later the victim’s parents returned home and were also assaulted, while a third offender came into the house. They stole cash and property before fleeing the scene.

The victims were taken to Royal Perth Hospital to be treated for  injuries including lacerations, bruising and swelling.

Detectives are appealing for anyone with dashcam vision from the area at this time to contact Crime Stoppers on 1800 333 000 or to make a report online at crimestopperswa.com.au