Shortly after 5pm on Tuesday, the man appeared to suffer a serious head injury at Rockwood Parade in Sligo and was treated at the scene. He was subsequently taken to Sligo University Hospital, before being transferred to Beaumont Hospital in Dublin.
Sadly, he died early this morning.
With a post mortem set to take place, Gardaí are treating this death as suspicious, and are appealing for witnesses to come forward.
Anyone with information has been asked to contact Sligo Garda Station on 071- 9157000 or the Garda confidential line on 1800-666-111 or any Garda station.
No arrests have been made as of yet.
