A 19-year-old woman has suffered a serious sexual assault, police said.
The victim was attacked in the Down Road/Beach Avenue area of Newcastle, Co Down, in the early hours of Saturday morning.
Police said they were trying to identify a man, believed to be aged in his late teens, seen in the area at the time.
He is described as about 5ft 10ins tall and of medium build with medium-length hair and wearing dark blue jeans and a light-coloured T-shirt.
Police have appealed for anyone who was in the area and has information about the incident, or the male to come forward.