Outside Greece , solidarity demonstrations Social_event , riots Violence and , in some cases , clashes Violence with local police also took place Process_start in more than 70 cities around the world , in Europe including Amsterdam , Barcelona , Berlin , Bordeaux , Brussels , Cologne , Copenhagen , Dublin , Frankfurt , the Hague , London , Madrid , Nicosia , Paphos , Paris , Rome and Seville and globally from São Paulo , San Francisco and Wellington to Buenos Aires and Siberia .