Homicide squad detectives are investigating the death of a man in Melbourne's southeast.
Emergency services were called to Lesley Grove at Noble Park about 1.10am on Monday, following reports of an assault, Victoria Police said.
They found a man with critical injuries.
Paramedics worked to save him, but he died at the scene.
A 30-year-old man of no fixed address and a 24-year-old man from Officer in Melbourne's southeast are assisting police with their inquiries.
The man who died is yet to be formally identified, and police urged anyone with information to contact Crime Stoppers.