A man was rushed to hospital after an attack on the Friday night of Electric Picnic.
The incident happened on between 11:30pm and 12:30am with the man believed to have sustained serious injuries. He was taken to Tullamore Hospital but was later transferred to St James's Hospital in Dublin.
Garda investigations are ongoing.
Read more: Three men arrested in connection with fatal assault in Co Kildare released without charge
A garda spokesman said: "An Garda Síochána are investigating an assault that occurred at Electric Picnic on the night of Friday 2nd September 2022 into the morning of Saturday 3rd September 2022 between 11.30p.m. and 12.30a.m.
"One man was assaulted and attended Tullamore Hospital and was later transferred to St James’s Hospital, Dublin.
"Investigations ongoing."
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