A murder investigation is under way after a man's body was found at a block of flats in west Belfast.
The 62-year-old victim has been named as James Hughes from Divis Tower.
PSNI officers found his body on the 14th floor of the tower after the alarm was raised by a member of the public.
A 42-year-old man arrested on Sunday is still being questioned by detectives from the PSNI's serious crime branch at Musgrave police station.
Detective Superintendent Kevin Geddes said: "We are not in a position to confirm a cause of death until a post-mortem examination has taken place but we are following a definite line of inquiry.
"Although we have a suspect in custody and residents in Divis Tower have been very helpful in providing information as part of our inquiries, we are still appealing for assistance."
The PSNI want to hear from anyone who was on the 14th, 15th or 16th floors of Divis Tower and heard anything suspicious between Saturday and Sunday evening.
