Riots in Dublin saw buses, Garda cars and a Luas set on fire.
The Taoiseach says the country will need stronger laws to tackle hatred on social media following unrest in the capital last night.
Riots in Dublin saw buses, Garda cars and a Luas set on fire, while shops in the heart of the city were looted and smashed.
The violence came after a stabbing at a school at Parnell Square East which left a 5-year-old girl in a critical condition, and three others injured.
The Taoiseach says those involved "brought shame on Dublin, brought shame on Ireland, and brought shame on their families and themselves."
Leo Varadkar adds stronger penalties for hatred on social media are needed:
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