Major Collision Investigation Unit detectives are investigating the death of a man in Cobram overnight, 29 July.
Emergency services were called to Cobram-Koonoomoo Road just before 9pm after a passer-by located a seriously injured man on the road.
CPR was commenced but the man, who is yet to be formally identified, died at the scene.
A male driver is currently assisting police with their enquiries.
Detectives are hoping to speak to anyone who may have seen the man walking between 8pm-9pm on Cobram-Koonoomoo Road from Cobram headed to Koonoomoo.
Specifically, anyone driving between 8.50pm and 9.00pm on Cobram-Koonoomoo Road.
Detectives are continuing to establish the exact circumstances of the man's death and investigations are ongoing.
Anyone with information or with dashcam/CCTV footage is urged to contact Crime Stoppers on 1800 333 000 or make a report online at www.crimestoppersvic.com.au