A 30-year-old man has been arrested
The PSI are appealing for witnesses to an attack in the North that has left a teenage boy with head injuries.
The 18-year-old sustained a gash in his skull after he was reportedly assaulted on the Main Street of Castlewellan in the early hours of this morning.
A 30-year-old man has been arrested on suspicion of Gross Bodily Harm.
Detectives want to hear from anyone who saw the injured teenager in the street.