A young Donegal man remains in a critical condition after an incident Derry on Saturday night.
Police have told Highland Radio News that they are investigating the discovery of an unconscious man in the Magazine Street area, and will make no further comment.
Police are still trying to determine how the man suffered his injuries. It was initially suspected that he was injured in a fall, but the police are also investigating the possibility the man was assaulted.
Police say their investigations are continuing and are appealing for witnesses