Yarra Crime Investigation Unit detectives are investigating an affray which occurred outside a commercial premises in Richmond on 10 June.
Investigators have been told two groups of men got into a verbal argument on Punt Road about 12.45am.
Two offenders then ran up to two people in the other group and punched them, starting a brawl between both parties.
The two men who were initially attacked sustained facial injuries and were taken to hospital for treatment.
Investigators have released images of two men they wish to speak to in relation to their enquiries.
The first man is perceived as Caucasian, slim build, approximately 187cms, short brown hair, black hooded jumper, black pants and white coloured shoes.
The second man is perceived as Caucasian, medium build, approximately 172cms, medium length brown hair, brown moustache, black beanie, grey hooded jumper, black skinny jeans, white shoes and carrying a black coloured satchel bag.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au
