Casey Highway Patrol officers are investigating a fatal collision in Cranbourne West on the afternoon of Friday 15 December.
A pedestrian was struck by a vehicle in Cranbourne-Frankston Road just before 5pm.
Paramedics worked on the woman, but she was pronounced deceased at the scene.
The female driver of the vehicle stopped at the scene and is assisting police with their enquiries.
She did not sustain any injuries.
The circumstances surrounding the collision are yet to be established and the investigation remains ongoing.
Anyone who witnessed the incident, has dashcam/CCTV footage or information is urged to contact Crime Stoppers on 1800 333 000 or make a report online at www.crimestoppersvic.com.au.