Homicide Squad detectives continue to investigate the death of a 22-year-old man in Mernda on Friday night.
It is alleged emergency services were called to Bridge Inn Road about 5.50pm on 6 March after reports of a group of people fighting.
A 22-year-old Mernda man was located at the scene with life-threatening injuries and was treated by ambulance crews but died.
Police arrested four people, a 16-year-old, 18-year-old and two 17-year-olds in relation to the incident
Homicide Squad detectives have charged a 17-year-old boy from the Greater Geelong and a 16-year-old boy from the Whittlesea area with murder and armed robbery.
Both will appear at a children's court at a later date.
An 18-year-old man from Mill Park has also been charged with murder and armed robbery and will face the Melbourne Magistrates' Court on 8 March.
A 17-year-old from the City of Yarra is under police guard at hospital and yet to be interviewed.
Anyone who witnessed the incident or with footage is urged to contact Crime Stoppers on 1800 333 000 or report at www.crimestoppersvic.com.au
