Transit Safety Division officers are appealing for public assistance following an assault on a train in Carnegie.
It is understood an unknown male approached a 35-year-old man on the Cranbourne-bound train on Monday, 31 March about 4.30pm.
Officers have been told the offender punched the victim while the train was stopped at Carnegie station, before he got off and fled the scene on foot.
The victim was not seriously injured.
Police have released images of a man they believe might be able to assist with their enquiries.
He is described as being approximately 190cm tall, is of thin build and is aged in his 30's.
Anyone who witnessed the incident, has CCTV/dashcam footage or information is urged to contact Crime Stoppers on 1800 333 000 or www.crimestoppersvic.com.au
