Detectives have charged three girls following an alleged assault in a Vale Street park at Moe about 3am on Monday.
Two 15-year-old Moe girls were charged with assault and robbery and were remanded in custody on Tuesday.
A 12-year-old Moe girl was also charged with the same offences and later bailed.
The girls will appear before a children’s court at a later date.
The victim, a 17-year-old Moe girl, sustained facial injuries during the assault.
She was taken to hospital following the assault and released later that day.