Four teenagers from Casey have been charged with armed robbery and robbery with police also finding an unloaded firearm at the time of their arrest.
The boys, a 17-year-old from Cranbourne West, and 15-year-old from Clyde North, and a 15-year-old boy from Cranbourne, and a 16-year-old boy from Hallam were arrested in a Commodore with allegedly stolen plates on the Eastern Freeway at 9pm on Thursday 5 September.
They were among six youths arrested in the car in Kew following a joint police operation of Box Hill Embona and Dandenong Southern Metro Crime Team.
Police have linked the youths to a series of assault and robberies in and around Wright Street Clayton, between 7.30 and 8.30pm on 5 September.
During the arrests police allege an unloaded firearm was found nearby to the Commodore.
It is alleged they targeted pedestrians and stole phones, wallets and bags, police say.
A 36-year-old man from Clayton and a 21-year-old woman from Cheltenham, received minor injuries during the alleged robberies.
The other victims, a 22-year-old man from Clayton, a 20-year-old man from Rowville, and a 21-year-old man from Glen Waverley were not injured.
The four Casey youths as well as a 17-year-old boy from Collingwood and 15-year-old boy of no fixed address have been charged with armed robbery and robbery and will appear before a Children’s Court at a later date.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000.
