Photo by our Observer @ypopto_mousi.

While the Greek parliament voted to approve the country’s sixth round of austerity measures last night, outraged protesters rampaged in the streets. Our Observer tells us that the use of violence is now no longer limited to anarchists and hooligans, ordinary protestors are also turning to violence as their exasperation reaches new heights.

Protesters and riot police clashed late into Sunday night. Police sprayed protesters with tear gas, and a number of protesters fought back by throwing stones and Molotov cocktails. Banks and hotels were set on fire, and luxury store windows were smashed. The Health Ministry report that about 50 people were injured.

Amateur videos uploaded online show scenes of urban guerrilla warfare in the very heart of Athens. These clashes are the worst Greece has experienced since the death of a teenager, killed by a police officer, set off riots in 2008.

Police officers on motorcycles drive into a crowd of protesters. Video published on YouTube by Perseus999 .

Police officers shoot tear gas at protesters, who fight back by throwing all sorts of projectiles. Video published on YouTube by TheVisehrad .