Maribyrnong Crime Investigation Unit detectives have arrested three males following a carjacking in Altona overnight.
Investigators have been told the offenders stole a vehicle and assaulted the occupants on Maidstone Street around 1am.
The offenders were sighted by police a short time later and a pursuit started.
Police followed the vehicle to Campbells Cove Road, Werribee South where the offenders dumped the vehicle.
The three males fled and were arrested a short distance away.
A 25-year old Morwell man, a 30-year old Smythesdale man and a 28-year old Morwell man were released pending further enquiries.
The investigation is ongoing and anyone with information is urged to contact Crime Stoppers on 1800 333 000 or make a confidential report atwww.crimestoppersvic.com.au