A teenager has been seriously injured overnight following an affray outside a shopping centre in Rowville.
Police have been told the victim was sitting at a bus stop along Stud Road when he was approached by two people, on Thursday 15 August, about 9.30pm.
The pair, who were armed with what appeared to be a baton and knife, assaulted the victim.
A bus driver who was stopped nearby intervened to help the boy and held his fire extinguisher towards the offenders before they ran from the scene.
The 19-year-old Rowville boy, who was not cooperative with police, has been taken to hospital with serious but non-life-threatening injuries.
The offenders were last seen driving from the scene in a silver BMW.
Knox Crime Investigation Unit detectives are investigating the circumstances surrounding the incident and appealing for any witnesses to come forward.
Anyone who witnessed the incident or with information is urged to call Crime Stoppers on 1800 333 000 or log onto www.crimestoppersvic.com.au.
