Greece general strike: protests in Athens - in pictures

Protesters gesture and wave Greek flags front of parliament in Athens Photograph: Lefteris Pitarakis/AP

Protesters try to break through a barrier in front of the parliament building in Athens
Photograph: Aris Messinis/AFP/Getty Images

A petrol bomb is hurled towards a line of police officers guarding the parliament building in Athens Photograph: Yannis Behrakis/Reuters

Tens of thousands of protesters surround the Greek parliament building in Athens Photograph: Orestis Panagiotou/EPA

A dog barks at a line of riot police Photograph: Pascal Rossignol/Reuters

Left and rightwing demonstrators clash in Athens's Syntagma Square Photograph: Dimitri Messinis/AP

A demonstrator throws a petrol bomb to riot police in Athens's Syntagma Square Photograph: Thanassis Stavrakis/AP

A protester in Athens attempts to kick away a tear gas grenade
Photograph: Angelos Tzortzinis/AFP/Getty Images

Foreign tourists run away from clashes between police and demonstrators in Athens's Syntagma Square Photograph: Dimitri Messinis/AP

Smoke rises from the area in front of the Parthenon in Athens where rioting occurred Photograph: Pascal Rossignol/Reuters

Police arrest a demonstrator near the parliament building in Athens Photograph: AP

The Greek prime minister, George Papandreou (centre), is accompanied by security agents as he leaves a meeting with the president, Karolos Papoulias in Athens Photograph: Yiorgos Karahalis/Reuters

Riot police take up a position in front of the Greek parliament building in Athens Photograph: Simela Pantzartzi/EPA

Riot police arrest a protester on Syntagma square Photograph: Angelos Tzortzinis/AFP/Getty Images

Riot police shelter from petrol bombs Photograph: Milos Bicanski/Getty Images

Protesters run from teargas thrown by riot police Photograph: Angelos Tzortzinis/AFP/Getty Images

Protesters clash with riot police Photograph: Louisa Gouliamaki/AFP/Getty Images

A masked protester in Syntagma square Photograph: Lefteris Pitarakis/AP