A man in his 40s is in critical condition as a result of the incident.
Four people have been arrested following a violent incident in Galway on Saturday.
It happened at around 11:40pm in the Dunlo Hill/Fairgreen area of Ballinasloe, and a man in his late 40s remains in critical condition as a result.
A teenage girl and two women in their 20s, who were also arrested, have been released without charge, while a man in his 20s was due before Roscommon District Court this morning.
Gardaí continue to appeal for any witnesses to come forward.
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