Violent clashes between riot police and organised, hood-wearing agitators forced the bulk of peaceful protestors with the "Indignant Citizens Movement" to retreat the upper part of Syntagma Square on Wednesday afternoon, even as their organisers appealed for an end to the violence over their loudspeakers.
The trouble makers, who had earlier been confined to the lower part of the square and surrounding streets succeeded in moving the clashes to the centre of the square, attacking platoons of MAT riot police with sticks, bits of broken marble and petrol bombs and provoking a response with tear gas and chemicals.

Authorities have so far made two arrests and detained 18 people in connection with the incidents. Twelve of those detained, during earlier clashes on Vassileos Georgiou Street, have already been released and another six are being questioned.

Police said two officers have been injured in the violence so far.