Gardaí are appealing for witnesses to the incident, which occurred on Monday.
Gardaí are investigating an assault in the midlands.
A man in his 20s was taken to hospital for treatment after the incident, which occurred shortly after midnight on Monday at a premises at Emmet Square in Birr.
His injuries are understood to be serious, but not life-threatening.
Gardaí are appealing for witnesses, particularly those with camera or dashcam footage, to come forward.
Anyone with any information is being asked to contact Birr Garda Station.
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