Police are appealing for public assistance to help locate missing St Albans teenager Heidi McDonough.
The 17-year-old was last seen at her St Albans home on 29 September.
Police hold concerns for Heidi’s welfare due to her age and the length of time she has been missing.
Heidi is described as 175cm tall, with a slim build, light brown hair, brown eyes and fair complexion.
She was last seen wearing a khaki jacket, khaki pants and khaki runners.
Heidi is known to frequent the Melbourne CBD.