A pedestrian is dead and another is in hospital after being hit by a car in Melbourne's inner south-east.
Police had just arrived after receiving several triple-0 calls about a noisy party and gathering in Sir Zelman Cowen Park on Glenferrie Road in Kooyong when they witnessed the three people being struck in a car park at around 1:10am on Sunday.
One of the pedestrians, a 24-year-old woman from Clifton Hill, died at the scene.
A 26-year-old woman was taken to hospital with serious injuries.
A man who was also hit was not physically injured.
Officers examine the scene where the two pedestrians were hit. (ABC News)
The 23-year-old driver of the car was arrested.
The Sunbury man will be interviewed by detectives from the Major Collision Investigation Unit.
A police spokesperson said detectives were investigating whether speed, alcohol and drugs were a factor in the collision.
Professional Standards Command has been called in, which a police spokesperson said is normal protocol when officers are in the vicinity of a fatal collision.
Police were called to reports an illegal rave was taking place in the park. (ABC News)
Anyone who witnessed the incident, has footage or other information is being asked to contact Crime Stoppers on 1800 333 000 or www.crimestoppersvic.com.au.