Damien was last seen by his family on Monday 28 November and he has not been in touch with anyone since Friday 2 December when he made a phone call.
The 15-year-old is described as 6ft tall of slim build with short blond hair. He was last seen wearing black tracksuit bottoms and black hoodie with black Nike trainers.
Police have been carrying out enquiries locally to locate Damien and they believe he is still in the area.
If you’re with Damien now, please call Police, or anyone who has any information about Damien’s whereabouts is asked to call 999 and quote 1132 of 28 November.