It's believed a teen celebrating his Junior Cert results has been hospitalised after collapsing on D'Olier Street.
Gardai say it was a quiet night for them but its reported ambulance services were kept busy.
Papers say he was found by paramedics at around 9pm and that drugs could have been a factor.
There are reports there were some scuffles amongst drunk teens on O'Connell Bridge, and that bottles were thrown at the Luas on Harcourt Street.
Over 60 thousand students received their Junior Cert results yesterday.
Gardai say it was a "quiet night" with most of those celebrating being very "well behaved".
