A man in his 20s has died in hospital following a serious assault in Kildare town on Sunday.
The man was found unresponsive on McGee Terrace at approximately 3.15am.
He was taken to Naas General Hospital after suffering head injuries.
He has since died.
The coroner has been notified, and a post-mortem examination will take place in due course.
Gardaà said the results of this examination will determine the course of the investigation
They are appealing for witnesses and are asking anyone who was in the area between 2am and 4am on Sunday to contact them.
Anyone with any information is asked to contact Kildare Garda Station on 045 527730, the Garda Confidential Line on 1800 666 111, or any garda station.