Gardai are investigating an incident at a campsite in Dublin in which one man received serious head injuries.
Another man was arrested and is being held in Clondalkin garda station after a large number of people were involved in a row in Clondalkin at 3am today.
It is understood a number of crude weapons were being used in the incident on the Bonnogue Road.
The man was rushed to Tallaght hospital, where he is now fighting for his life.