Petrol bombs and tear gas as clashes break out in Athens, Thessaloniki and Patras between police and hooded men (photos-videos)
Rioters threw petrol bombs and police responded with tear gas
Terrorists arrested with Kalashnikovs, explosives and grenades in Athens
One of those arrested had been convicted of participating in the 'Revolutionary Struggle' along with Maziotis and Roupa
Three police officers injured by anarchists in attacks
The anarchist groups are protesting against the evacuation of a building from squatters
