Police are appealing for public assistance to help locate missing teenager Savvas Stavrou.
The 16-year-old was last seen in Mason Street, Reservoir about 8.30am this morning.
It is believed Saavas left to visit the Preston Library and return home by 11.00am however failed to return.
Police and family have concerns for Savvas's welfare as his disappearance is out of character, he has a medical condition and is non-verbal.
He is described as 180cm tall with short brown hair, a solid build and fair complexion.
He was last seen wearing a t-shirt, grey pants, grey 'Crocks' shoes and was carrying a small blue leather bag.
An image has been released in the hope someone recognises him or has information regarding his whereabouts.

Anyone who sees Savvas or has information on his current whereabouts is urged to contact Reservoir Police Station on 9460 6744.