A man who was murdered in Co Down has been named by police as 50-year-old Mark Dorrian.
Mr Dorrian died in hospital after he was found unconscious at a property in Newtownards with head injuries on Thursday.
Three people are still being questioned over his death.
The scene in the West Street area of Newtownards, following the death of a man (Liam McBurney/PA)
Police maintained a presence at the scene on Friday.
PSNI Detective Chief Inspector Neil McGuinness said: “A murder investigation was launched after a report was received that a man was unconscious inside a flat in the West Street area, just before 1.50am on Thursday, 26th December.
“Mark sadly died later in hospital having sustained a number of injuries, including head injuries.
“A post-mortem examination will take place in due course.”
Detective Chief Inspector Neil McGuinness from Police Service of Northern Ireland’s major investigation team (Liam McBurney/PA)
The detective continued: “Three people – two women, aged 58 and 33, and a man, aged 36 – were arrested on suspicion of murder.
“They all remain in police custody at this time, with detectives being granted a 36-hour extension to question them this afternoon, Friday 27th December.
“My thoughts at this time are first and foremost with Mark’s friends and family.
“Our investigation is at an early stage and inquiries are ongoing to establish the exact circumstances.
“I am asking anyone with information, no matter how insignificant it may seem, to contact detectives on 101. Please quote reference 98 of 26/12/24.”