19 people have been arrested in Dublin after large groups of young people threw bottles at gardai.
A number of streets were sealed off and the public order unit cleared crowds for a second night in a row.
Two gardai were injured and a patrol car was also damaged.
A member of the public, who wasn't involved in the violence, was assaulted and taken to hospital.
19 people were arrested for public order offences, including two aged under 18 - ten people have been charged and will appear in court at a later date.