A Vitenamese national with limited English has gone missing in Kilkeel.
Sixteen year-old Hong Tran was last seen on Saturday and is understood to have been trying to travel to Dundalk.
He is described as being 163cm tall and of slight build with black hair. When last seen he was wearing black chinos, a black quilted jacket, a grey, long sleeved top and black shoes.
Police are appealing to Hong Tran or anyone who knows of his whereabouts to contact them in Kilkeel on 0845 600 8000.