Yarra Ranges Crime Investigation Unit detectives have charged four teenage boys following a stabbing at Lilydale railway station early this morning.
It is alleged a group of teenagers were involved in an assault and stabbed a male below the overpass on the Maroondah Highway just after midnight.
Protective Service officers intervened, and the offenders fled the scene before they were arrested nearby.
An 18-year-old Gruyere man was taken to hospital with serious facial injuries.
A 17-year-old Croydon boy, 16-year-old Bayswater North boy, 16-year-old Mitcham boy and a 17-year-old Boronia boy have all been charged with recklessly cause serious injury, intentionally cause injury and other assault related offences.
They will appear at a children's court at a later date.