Violence and arrests in Europe protests

Violence on the streets of Rome.
Protests against financial inequity dissolve into violent confrontations as demonstrators clash with police.
In some of the worst violence seen in the Italian capital for years demonstrators set fire to a police van.
Two police officers managed to get out of the van and ran away just moments before it was engulfed in flames.
At least two demonstrators were injured and one was reported to be in critical condition.
Police repeatedly fired teargas in attempts to disperse demonstrators hours after tens of thousands of people in Rome joined a global "day of rage" against bankers and politicians.
Some financial institutions came under attack -- literally.
Water canons were used to stem the unrest.
In London more violence.
Police crack down on several demonstrators who had answered the call from the U.S. to join the occupy Wall Street movement.
Throughout the day worldwide protests have sprung up in countries from New Zealand to Taiwan, with few demonstrations turning violent.
Deborah Lutterbeck, Reuters