Police are appealing for public assistance to help locate missing teenager Thomas Sperl.
The 15-year-old Wandin North youth was last seen in the Yarra Ranges area on 16 June.
Thomas is known to frequent the eastern suburbs.
Police and family have concerns for his welfare due to his age and the length of time he has been missing.
Police have released an image of Thomas in the hope that someone may have information on his current whereabouts.
Anyone who sees Thomas is urged to contact Lilydale Police Station on 9739 2300.