Transit Crime Investigation Unit detectives are appealing for public assistance following a stabbing in Vermont South this week.
Police have been told a man was approached by an unknown male while standing at a bus-stop on Springvale Road about 4pm on 15 September.
The victim was stabbed to the upper body with an edged weapon.
The victim, a 37-year-old man, was conveyed to hospital with non-life-threatening injuries.
The offender fled from the scene on foot with another male, west on Burwood Highway, and is yet to be located at this stage.
The offender is perceived to be Caucasian, 186cm tall, aged in his 20s and was wearing a dark coloured hoody and pants.
The other male he ran off with is perceived to be Caucasian, aged in his 30s, brown hair and was wearing a black singlet and shorts.
It is believed those involved are not known to each other.
Investigators have released images, a facial composite of the main offender and CCTV in the hope someone may recognise the males.
Anyone with information that could assist police is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au.