Major Collision Investigation Unit detectives are investigating after a fatal collision in Hoppers Crossing on Sunday, 13 November.
It is understood a vehicle collided with a child at the intersection of Derrimut and Heaths Road around 9.15pm.
A four-year-old girl from Werribee was flown to hospital with life-threatening injuries but sadly died.
The driver of the car, a 20-year-old Werribee man stopped at the scene and is assisting police with their enquiries.
The exact circumstances surrounding the collision are yet to be determined and investigations are ongoing.