A Dublin teenager has been seriously injured following a fight allegedly pre-planned on social media.
He's being treated at Beumont Hospital after the row in Swords.
Gardai have confirmed they're investigating after a 17 year old boy was found unconscious in Swords.
He was discovered outside a coffee shop at Airside Retail Park just after 1.30am on Sunday morning.
The boy was transferred to Beaumont Hospital to be treated for a serious head injury.
Detectives are investigating whether he was punched during a fight which had been pre-arranged on social media.
They're trawling CCTV from nearby businesses and are appealing for anyone with information to get in touch.