Transit Crime Investigation Unit detectives are appealing for public assistance following an assault on a tram in January.
Investigators have been told a 58-year-old Brunswick man got on the tram at the intersection of Weston and Blyth streets about 1.45pm on 25 January.
Two men approached the victim and a verbal argument ensued.
The situation escalated and one of the men struck the victim to the face, fracturing his nose.
The offenders then exited the tram at Stewart Street.
Police have released computer generated images of two men that they believe may be able to assist with their enquires.
Anyone who recognises the men or witnessed the assault is urged to contact Crime Stoppers on 1800 333 000 or file a confidential report online at www.crimestoppersvic.com.au