Police are currently at the scene of a collision between a truck and cyclist on the Princes Highway near Allansford.
It is believed a truck was travelling west on the highway near Ziegler Parade when the collision occurred about 4.30pm.
An Allansford man in his mid-20 died at the scene.
The truck driver, a Warrnambool man in his 60s, was taken to hospital for observation.
The driver of a second vehicle who took evasive action was also taken to hospital.
The exact cause of the crash is being investigated and anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report at www.crimestoppersvic.com.au