Melbourne Embona Taskforce detectives are appealing for public assistance following a robbery in Fitzroy last month.
Investigators have been told two male victims were walking through Atherton Gardens at 8.15pm on Saturday 7 December when they were chased by four males.
The two 14-year-old victims started running away but were caught by the offenders who stole a small amount of cash and a set of headphones.
The four teenage offenders, all perceived to be African in appearance, then fled the scene.
The first offender is described as 180cm tall and was wearing a green and grey zip-up top and Adidas track pants with white stripes down the side.
The second offender was wearing a black zip-up jacket with yellow stripes and the words ‘Black Pyramid’ on the sleeves, white and red Nike Air Max 95 shoes and red track pants.
The third offender is described as short, bleached hair on top, wearing blue Nike shoes, black track pants and white hoodie underneath a Barcelona Guernsey.
The fourth offender was wearing black track pants, black jumper with a white hoodie.
Police have released still images of four males they believe may be able to assist with their enquiries.
Anyone with information or who witnessed the incident is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au