A man has died after being struck on Citilink this morning (11 March).
Investigators believe the man, who is yet to be identified, ran onto the road and was struck by the east bound truck about 9.30am.
The truck driver and sole occupant stopped and rendered assistance.
The exact cause of the collision is yet to be determined and the investigation remains ongoing.
Anyone with information or dash cam footage is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report at www.crimestoppersvic.com.au
Traffic on Citilink east bound is being diverted at Power Street and the Burnley tunnel can be entered via Kings Way.