Detectives from Major Collision Investigation Unit are investigating the circumstances surrounding a fatal crash which occurred in Springvale South this morning.
Emergency services were called to Springvale Road about 5.30am after reports a car had crashed into a pole.
The male driver and his female passenger were freed from the vehicle and taken to hospital in critical condition.
The female passenger later died at hospital.
Anyone who witnessed the crash, dashcam footage or further information is urged to contact Crime Stoppers on 1800 333 000 or submit a report online at www.crimestoppersvic.com.au.