Emergency services are currently at the scene of a fatal motorbike crash in Diamond Creek.
It is believed the motorcyclist was travelling along Ironbark Road when the bike veered off the road and over an embankment just after 1pm.
The man, who is yet to be formally identified, died at the scene.
The cause of the crash is yet to be determined and the investigation is ongoing.
Road closures are currently in place at Ironbark Road from Broad Gully Road to Black Gully Road.
Anyone with information or who witnessed the incident is urged to contact Crime Stoppers on 1800 333 00 or submit a confidential report online at www.crimestoppersvic.com.au