A man in his 30s has suffered serious injuries after being attacked in Derry.
Police said the man was seriously assaulted at about 4 am on Sunday morning, August 28, in Magowan Park in the Creggan area.
He was taken to Altnagelvin Hospital for treatment and remains in a serious condition.
A 36-year-old man has been arrested and taken to the custody suite at Strand Road PSNI station.
Detective Sergeant Brian Reid has appealed to anyone who has any information about this incident to contact detectives at Reactive and Organised Crime in Strand Road police station on the non-emergency number 101, quoting reference number 330 28/08/16.
Or alternatively, information can be provided anonymously to Crimestoppers on 0800 555 111.