Greece was bracing itself for serious civil unrest as MPs passed a bill to implement major economic reforms demanded by creditors in return for a bailout.
The International Monetary Fund’s shock admission that Greece could not hope to repay its debts fuelled public anger, and strikes and protests closed metro stations and brought city centre traffic to a standstill.
But as MPs prepared to vote, anarchist protesters outside the parliament building hurled rocks and petrol bombs at riot police who responded with teargas.
Riot police run as they disperse protesters during clashes in Athens
A protester bleeds as he is arrested by riot police following clashes
Protesters set fire to a TV van during clashes
Protesters set fire to bins
Riot police officers run away from fire
Police stand amongst the flames from exploded petrol bombs thrown by a small group of anti-establishment demonstrators
Riot police stand amongst the flames in front of parliament
Protesters clash with riot police in front of the Greek Parliament
Riot police use teargas in front of the Greek Parliament
A protester is arrested by riot police following clashes
Protesters raise a Greek flag with a writing reading ''Greece we love you'' during a rally outside the Greek Parliament
Riot policemen stand guard in front of the Greek Parliament during clashes
Riot policemen arrest a protester during an anti-austerity protest in front of the Greek parliament
Anti-austerity protesters march in front of the parliament after clashes
A protester clashes with riot police
Masked anti-establishment youths and anti-austerity protesters are seen through a cloud of tear gas during clashes
Tourists watch as debris burns on the streets following clashes between protestors and riot police
Members of the Communist-affiliated PAME labor union march during an anti-austerity rally