Rome is counting the cost of its worst violence in years, which erupted on a day of global protests over austerity and banking practices.
The city's mayor says damage costing more than one million euros ($ 1.4 million) was caused when hooded protesters torched cars and attacked banks and a church.
Mayor Gianni Alemanno described those responsible as "animals".
Saturday's protests affected 950 cities in 80 countries. They began in New York as "Occupy Wall Street" a month ago.
Megan Williams reports from Rome.