Monash Crime Investigation Unit detectives are investigating an affray in Mount Waverley on 19 October.
Investigators have been told a large brawl occurred at a teen’s birthday party in Oxford Street about 11pm after gate crashers tried to get into the party.
Several victims at the party received injuries requiring medical attention.
Police have released images of four males in a dark coloured Toyota Landcruiser who they believe can help with their enquiries.
Anyone who witnessed the incident or anyone who knows the identity of these men is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report at www.crimestoppersvic.com.au