Southern Metro Region Crime Squad detectives are investigating a series of aggravated home invasions from overnight in Melbourne's south-east and Bayside suburbs that are believed to be linked.
Investigators believe the same offenders committed the home invasions in Brighton East, Malvern, Bentleigh East and Glen Iris during the early hours of Saturday, 26 April.
During the incidents, the offenders are believed to have been travelling in a grey coloured sedan possibly a stolen vehicle.
It is understood the offenders entered a property on Spring Street, Malvern about 2.40am where they stole keys to the victim's vehicle.
The victim confronted the offenders who fled the scene without the vehicle.
The males then attended at Charles Street, Brighton East about 3.20am where they threatened two female occupants, demanding car keys, however nothing was stolen.
A short time later the offenders attended at an address on Almurta Road, Bentleigh East about 4.30am where they attempted to gain entry before being disturbed by the occupant.
The offenders then attended at Pascoe Street, Glen Iris about 4.45am where they stole two BMWs, including a white XY wagon and a grey M4 sedan.
These two vehicles were seen travelling at high speeds along the Monash Freeway about 5am near Wellington Road Mulgrave.
The M5 sedan was later located in the Wheelers Hill area.
No arrests have been made and detectives are appealing for anyone with information about the incidents to come forward.
Anyone who witnessed the incident, has dashcam/CCTV footage or information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report at www.crimestoppersvic.com.au
