Police are appealing for public assistance to help locate missing teenager Dhuarem Gason-Harrison.

The 17-year-old was last seen in Croydon South about 1pm on July 4.

He is described as 183cm tall with dark brown hair and brown eyes.

Dhuarem is known to frequent the Croydon, Lilydale and Gippsland areas.

Police have released an image of Dhuarem in the hope that someone may have information on his current whereabouts.

Anyone with information about Dhuarem is asked to contact the Boronia Police Station on 9760 6600.