September 21, 2026 — 7:01am

An online marketplace exchange ended in violence on Sunday afternoon, leaving a teenage boy and a man in his 20s with critical injuries in hospital.

Police said three males met outside a house on Cobham Street in St Albans as part of a marketplace deal at about 1.20pm before a violent argument broke out.

A 17-year-old and a man in his 20s were both taken to hospital with critical injuries from being stabbed, while a 23-year-old man was also hospitalised with serious stabbing injuries.

Brimbank crime investigation unit detectives said they were not looking for anyone else in relation to the violence and no arrests had yet been made.

Police cordoned off the street around a blue Hyundai hatchback and combed the nature strips outside a double-fronted weatherboard house on a corner block yesterday. The car was still there with police tape on its mirror on Sunday night.

Anyone who witnessed the incident, with CCTV/dashcam footage or information, should contact Crime Stoppers on 1800 333 000 or online at www.crimestoppersvic.com.au

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