Detectives are appealing for information from anyone who was in the vicinity of Castle Place/Royal Avenue on Saturday afternoon, 14th March.

Officers received a request for assistance from colleagues in Northern Ireland Ambulance Service to attend Royal Avenue around 4:40pm yesterday afternoon.

On arrival, an unconscious male had been located and was being provided with medical treatment by ambulance staff.

He was conveyed to hospital and remains in a critical condition at this time.

Officers are working to establish the events leading to this and are exploring a possible link to an earlier assault reported at 4:30pm, occurring in Castle Place.

Anyone with information is asked to contact 101, quoting reference 1024 14/03/26.