Brimbank Crime Investigation Unit detectives are investigating following an aggravated burglary at a Sunshine service station on 9 February.
Investigators have been told three unknown offenders forced their way into the McIntyre Road service station about 5am.
The offenders stole the cash register before fleeing the scene in a white Nissan Pulsar.
No one was injured as a result of the incident.
Police have released CCTV of three men who they believe may be able to assist with their enquiries.
The first offender was wearing a black ‘Balenciaga’ hooded jumper, black pants, black shoes, black mask, blue gloves and was armed with a tyre iron.
Offender two was wearing a red, black and white ‘Jordan’ hooded jumper, a black mask, grey beanie, black pants and black shoes.
The third offender was wearing a black hooded jumper, grey track pants with a black stripe down the sides, black mask, black ‘Nike’ shoes and blue gloves.
Anyone with information, who recognises the pair or vehicle, or who may have dash cam vision is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report at www.crimestoppersvic.com.au