tension and battle between greek officers and anarchist demonstrators took place in the centre of athens , greece , during the anti - wartime parade of the 4th european social forum which is taking place in the greeks stadium , from 4 to 7 of may 2006 . the march of the approximately 1 , 000 anarchists ended with clashes between groups of communists and police . riot police used methane stones , while a branch of a greek banker , a fast - food store and near 50 apartment windows in central greek were shattered .
The riots in Greece started on December 6.