Police are appealing for public assistance to help locate missing teenager Acacia Williams.
The 18-year-old was last seen at her home in Blackburn South on Wednesday 13 November about 10.15am.
Police and family hold concern for Acacia's welfare due to a medical condition and due to the length of time she has been missing.
It's believed Acacia may have attended the Melbourne and Melton areas.
She is described as about 155cm tall, perceived to be of Aboriginal appearance, with a thin build, olive complexion, dark long hair which is pink in colour at the ends.
Investigators have released an image of Acacia in the hope someone recognises her and can provide information regarding her current whereabouts.
Anyone who sees Acacia is urged to call Forest Hill Police Station on 8847 3600.
