tension and battles between athens police and anarchist demonstrators took place in the centre of athens , greece , during the anti - war event of the 4th european socially dialogue which is taking place in the greek government , from 4 to 7 of may 2006 . the march of the approximately 1 , 000 anarchists culminated with clashes between bands of anarchists and cops . citizen police used tear gas , while a branch of a spanish bank , a fast - food store and half 50 shop entrances in central helsinki were burned .
The riots in Greece started on December 6.