Peter McDermott (60s) who had been receiving treatment at Mayo University Hospital following a serious assault in Westport passed away earlier this evening.
The State Pathologist has been notified and a post-mortem will now take place in due course. AÂ family liaison officer has been appointed.
Earlier today, a man (20s) who was arrested as part of this investigation was released from custody. A file will now be prepared for the Director of Public of Prosecutions.
Gardaà are continuing to appeal to anyone who may have witnessed this incident to contact them.
Any pedestrians or road users who were in the vicinity of High Street in Westport between 1am and 2am on Saturday 9 September 2023 and who may have camera footage (including dash cam) is asked to make this available to investigating GardaÃ.
Anyone with information in relation to this incident is asked to contact Westport Garda Station on 098 50230, the Garda Confidential Line on 1800 666 111, or any Garda Station.