A man in his late 20s is in a critical condition in hospital after an assault in Co Wicklow.
He was found seriously injured at James Everett Park in Bray at about 1.45am Sunday morning.
The man was taken to St Vincent's Hospital in Dublin before being transferred to Beaumont Hospital.
A man in his 20s who was being questioned by gardaí has been released without charge.
A file is being prepared for the Director of Public Prosecutions.
Earlier, they appealed for anyone who was in Bray town centre or the Little Bray, Fassaroe and James Everett Park areas between 1am and 2am this morning to contact Bray Garda Station on 01-6665300, the Garda Confidential Line on 1800-666-111 or any garda station.