The assault left a man in a serious condition in hospital.
A boy has been arrested in relation to an assault in Laois that left a man seriously injured.
The attack took place on Main Street, Portlaoise in the early hours of Saturday morning.
A boy, under the age of 18, was detained by gardaí yesterday and has since been released without charge.
Gardaí continue to appeal for any witnesses to the incident - particularly anyone who was near the junction of Main Street and Church Street, Portlaoise between 3 and 3:30 on Saturday morning.
Anyone with information is asked to contact Portlaoise Garda Station on 057 8674100, the Garda Confidential Line on 1800 666 111, or any garda station.
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