Homicide Squad detectives are investigating the circumstances surrounding the death of a man in Reservoir
Investigators believe two men were involved in an altercation at an address in Mahoneys Road about 4.30pm on 6 December.
The situation escalated and one of the men received wounds to his lower body.
Emergency services were called and treated the man but he died at the scene.
A man has been arrested and is currently assisting police with their enquires.
At this stage detectives believe both parties are known to each other.
Any witnesses, anyone with CCTV/dash cam footage or 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