Overview
- Gardaí responded around 10.30pm to reports of a group disturbance at Curragh Hall Crescent in Tyrrelstown.
 - The group had dispersed before officers arrived, and a man later presented at Connolly Hospital Blanchardstown with serious injuries.
 - He was pronounced dead a short time later, and a man in his 20s was arrested in connection with the case.
 - The scene has been preserved for forensic examination, and the Office of the State Pathologist has been notified.
 - An incident room is operating at Blanchardstown Garda Station, with a Senior Investigating Officer appointed, a Family Liaison Officer assigned, and a public appeal issued via 01 666 7000 or the Garda Confidential Line at 1800 666 111.