Extremists that infiltrated the anti-government rally in Athens threw petrol-bombs (molotov cocktails incendiary bombs) to the police forces, bringing chaos for a quite a few minutes.
The extremists also attacked the van of a TV channel causing serious damages to it.
The anti-riot police responded with the use of tear gas in order to disperse them.
What is new in these clashes is the fact that the trouble-makers seems to be using some new improvised hand held device to launch projectiles to the police forces.
(Updates according to developments)