Police are appealing for witnesses to a fight on a bus between Dandenong and Narre Warren.
Endeavour Hills Police said the incident occurred about 4.30pm on Monday 5 February.
The 23-year-old victim boarded a bus at Dandenong Plaza, heading towards Fountain Gate Shopping Centre.
He had a verbal altercation with three to four young men on the bus described as aged between 14 and 16 years and of Middle Eastern appearance.
The victim got off the bus at Overland Drive in Narre Warren and was assaulted by two to three of the men.
Police appealed for anyone who witnessed the incident or with any information to call Crime Stoppers on 1800 333 000 or visit www.crimestoppers.com.au and quote incident number 180046210.