Fawkner Embona Taskforce Detectives are hoping to identify a man following an armed robbery in Brunswick last month.
Investigators have been told an unknown man entered a convenience store on Sydney Road about 10.30pm on Tuesday, 30 June.
The man walked to the counter and selected a chocolate bar.
He then produced a knife and demanded the staff member open the till.
The staff member complied, and the man reached over the counter and stole an amount of cash before fleeing on foot.
The victim was not physically injured during the incident.
Police have released CCTV footage and images of a man who they believe may be able to assist with their enquiries.
The man is perceived to be of Middle Eastern appearance, between 20-30 years-old, with a medium build.
He was wearing a blue/grey hooded jumper, black track pants with a white logo and light-coloured sneakers.
Anyone who recognises the man or with information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report to www.crimestoppersvic.com.au