Boy, 17, charged over teen's stabbing death

The 17-year-old is expected to appear in Melbourne Children's Court on Wednesday and an investigation is ongoing.

Police previously urged the youth to turn himself in, alleging he's a "significant player" in the incident.

Lyhym was fatally stabbed at Sunshine bus station on May 18.

Police allege a fight broke out between two groups of teenagers before the fatal incident.

The motivation behind the confrontation remains unknown.

Another boy was hospitalised after the incident and a third was treated at the scene for injuries.

A 17-year-old from Caroline Springs and an 18-year-old from Burnside were interviewed by police and released without charge.

Anyone with information is being urged to contact Crime Stoppers.