A further nine people have been arrested in relation to the investigation into the Dublin riots in November.
Gardai said that 10 searches were carried out at separate locations across Dublin city on Tuesday morning in connection with the investigation into the disorder that broke out on November 23.
During the searches, eight men and one woman were arrested.
They are being detained at Garda stations in the Dublin area under Section 4 of the Criminal Justice Act, 1984.
Gardai said this brings the total number of arrests in the ongoing investigation to 49.
Rioting broke out in the Irish capital after three children and a care worker were injured in an attack outside a primary school and creche on Parnell Square East, for which a man has been charged and appeared before the courts.
A Garda car, buses and a Luas tram were set on fire, shops were looted and infrastructure, such as traffic lights, was damaged during the disorder.