Fawkner Embona Taskforce detectives have released CCTV vision after a woman was robbed at gun point at an adult store in Campbellfield last week.
Investigators have been told three men attended the Hume Highway store about 10.30pm on Friday 23 August.
Two men entered the store and pushed over a number of display stands while the third man, who was dressed in a fluorescent jacket, kept guard at the front door.
One of the offenders approached a female staff member and produced a firearm while the other offender emptied a cash register.
The three offenders left the store with an amount of cash.
Detectives are keen to speak to anyone who witnessed the armed robbery.
Police are particularly interested to speak to anyone who saw a white VP Holden Commodore outside the store before the incident.
Investigators have released the below CCTV images of three men who they believe may be able to assist with the investigation.