Mill Park Serious Crime Taskforce detectives are investigating an assault and robbery which occurred in Doreen on 1 January.
Investigators have been told a 23-year-old Doreen man had been watching fireworks in the vicinity of Courthouse Walk between 12-12.30am.
Three men approached the victim and asked him for a cigarette.
The victim declined and the men started to push and shove the victim.
The situation escalated and the victim was punched a number of times by the group before being forced to hand over a pouch of tobacco.
Police have been told the offenders left the scene and were last seen on Malmsbury Lane.
One of the offenders is perceived to be Caucasian with a tanned complexion, about 20-years-old with dark brown spikey hair and brown eyes.
At the time of the incident he was shirtless but wearing boardshorts and thongs.
Investigators have released a computer-generated image of a man they believe may be able to assist with their enquires.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or file a confidential report at www.crimestoppersvic.com.au
