Major Collision Investigation Unit detectives are investigating a fatal crash which occurred in Mount Lonarh last night (24 December), Victoria Police say.
Investigators have been told a white Toyota sedan was travelling north along Amphitheatre Road about 7pm when it lost control and crashed into a tree.
A yet to be identified female passenger died at the scene.
A 21-year-old man and the driver, a 57-year-old man, both from Koroit man were taken to hospital with non-life threatening injuries.
The exact cause of the crash is yet to be determined and investigation remains ongoing.
Anyone with information or who witnessed the incident is urged to contact Crime Stoppers.