The four men — one armed with a firearm arm, another with a crow bar — raided a home in Dakota Ave, Wallan, yesterday at 7pm.

They stole an undisclosed amount of cash before fleeing in a late-model blue Toyota sedan.

Two occupants of the house were not injured.

Police have released images and CCTV footage of four males they believe may be able to assist with their inquiries.

All were wearing dark clothing and had their faces covered.

Mitchell Crime Investigation Unit detectives are appealing for anyone with information to contact Crime Stoppers on 1800 333 000 or submit an anonymous report online at www.crimestoppersvic.com.au