A 39-year-old man has been arrested in Londonderry over the murder of a man in Glasgow in 1994.
Derek Sheerin was found dead and covered by weeds by three girls near Celtic Football Club's stadium in the east end of Glasgow in September 1994.
The 24-year-old had been strangled.
The Rangers supporter lived with his sister Diane in the east end of the city and had two other sisters and a brother.
Police Scotland, assisted by detectives from PSNI Serious Crime Branch detained a man in Derry this morning as part of the investigation.
The suspect has been taken to Glasgow for questioning.
Detective Chief Inspector Michael Harvey from Serious Crime Branch has appealed to people in Derry who have any information about the murder to contact detectives at Maydown using the non-emergency number 101, or by calling the independent charity Crimestoppers anonymously on 0800 555 111.