Northern Territory Police are attempting to locate 15-year-old William Degoumis who was last seen by his family on Tuesday, 18 November.

William attended school at Taminmin College on Tuesday morning and hasn’t been seen since.

William is described as having olive skin; approximately 170cm tall and thin build. He has brown eyes and short dark hair.

Police urge anyone who may have seen William since Tuesday, or who may know of his whereabouts, to contact Police on 131 444.