A 49-year-old man has been arrested following the sudden death of a man in Armagh on Saturday night.
Police say they received a report of an altercation in the Ballinahone Close area at about 22:20 BST.
Upon arrival, they found a man lying on the ground. He was treated by emergency services but pronounced dead shortly after.
A post-mortem examination will be carried out to determine the cause of death.
Det Ch Insp Michelle Shaw appealed for information.