Conan Anderson died in hospital on Saturday
A 22 year old man has died in hospital after sustaining serious head injuries earlier this month.
The PSNI confirmed the death of Conan Anderson is now being treated as murder.
Detective Chief Inspector Peter Montgomery said: "Conan tragically passed away on Saturday afternoon after being admitted to hospital with serious head injuries on the evening of Monday 6th February. The matter was reported to police on Wednesday 8th February and enquiries established that an incident had occurred in the early hours of Monday morning in the Arthur Lane area of Belfast.
"A 27 year-old man was arrested in north Belfast on Thursday 9th February on suspicion of grievous bodily harm with intent and later released on police bail pending further enquiries."
Detective Chief Inspector Montgomery continued: "I am appealing for anyone with any information about the incident at Arthur Lane in the early hours of Monday 6th February or any information which could be of assistance to my investigation to contact detectives at Musgrave Street quoting reference number 1034 08/02/17. Information can also be given anonymously through the independent charity Crimestoppers on 0800 555 111.”