A man has been stabbed in the face during an incident at a house in the Old Fort area of Derry.
Detectives in Foyle are investigating the incident which happened on Friday, 9 December.
At approximately 3.25am it was reported that one man had been stabbed in a house in the area. He received facial injuries. He was treated for his injuries at a nearby hospital. His injuries are not believed to be life threatening.
A 29 year old man has been arrested in relation to the incident. He is currently helping police with their enquiries.
Anyone with information about the incident is asked to contact CID in Strand Road Police Station on 0845 600 8000. Or if someone would prefer to provide information without giving their details, they can contact the independent charity Crimestoppers and speak to them anonymously on 0800 555 111.