Dandenong Crime Investigation Unit detectives have charged four teenagers following an assault and stabbing in Springvale last week.
It is alleged a large group of youths assaulted a man inside a shopping centre at the corner of Buckingham Avenue and Springvale Road about 7.50pm on Sunday, 28 July.
The victim, a 48-year-old Springvale man, was taken to hospital with minor injuries.
Emergency services were then called to a group of teenagers allegedly involved in a physical altercation with a 15-year-old Springvale boy at a park on Springvale Road about 8.20pm.
The victim sustained stab wounds and was taken to hospital with non-life-threatening injuries.
A 16-year-old Ringwood East boy has been charged with violent disorder in relation to the incident at the shopping centre.
A 17-year-old Chadstone boy and 15-year-old Berwick boy have both been charged with intentionally cause serious injury and affray in relation to the incident at the park.
All three were remanded in custody to appear before a children's court at a later date.
A 14-year-old Mitcham boy has also been charged with intentionally cause serious injury and affray in relation to the incident at the park and will appear before a children's court.
Anyone who witnessed the incident, has footage or with information is urged to contact Crime Stoppers on 1800 333 000 or online at www.crimestoppersvic.com.au