Police and the family of 17-year-old Caolan Carson are appearling for information on his whereabouts.
The teenager was last seen this morning in the Hightown Road area of Glengormley and police said they are concerned for his welfare.
Caolan is described as being five feet 11 inches tall with short black hair. When last seen he was wearing grey tracksuit bottoms, a navy coat with a grey band around the middle and green Adidas trainers.
Police are appealing for Caolan or anyone who knows of his whereabouts to contact officers in Newtownabbey on 101 quoting reference number 260 of 11/8/17.
UPDATE: Caolan has been found safe and well.