UPDATE: A 17-year-old has been arrested following a fatal assault at Seaford.

Paramedics were first called to reports of a suspected stabbing on Station Street shortly before 7pm on Wednesday night.

They attempted revive the victim, a 26-year-old Langwarrin man, but he died at the scene.

Homicide Squad detectives are trying to establish exactly how the man sustained his injuries.

Witnesses claim he was attacked with a glass bottle.

Press PLAY below for more.

Anyone who witnessed the incident or has information is urged to contact Crime Stoppers on 1800 333 000 or visit www.crimestoppersvic.com.au