The PSNI are today investigating a serious assault in Co Down, which has left three young men injured.
Police were called to the Lower Square area of Castlewellan at about 3am this morning to deal with an altercation.
A 19-year-old suffered serious head injuries.
Two others, also in their late teens, received head and facial injuries.
Anyone with any information is asked to contact the PSNI in Downpatrick.