Greece strike protests turn violent

Riot police guard the parliament building Photograph: Vassil Donev/EPA Photograph: Vassil Donev/guardian.co.uk A demonstrator wearing a gas mask Photograph: Vassil Donev/EPA Photograph: Vassil Donev/guardian.co.uk A dog carries a placard with an anti-capitalist message Photograph: Vassil Donev/EPA Photograph: Vassil Donev/guardian.co.uk Riot police patrol an area scorched by a petrol bomb thrown by protesters Photograph: Vassil Donev/EPA Photograph: Vassil Donev/guardian.co.uk Policemen on strike applaud passing demonstrators Photograph: Louisa Gouliamaki/AFP/Getty Images Photograph: Louisa Gouliamaki/guardian.co.uk Riot police detain a demonstrator Photograph: Aris Messinis/AFP/Getty Images Photograph: Aris Messinis/guardian.co.uk A protester throws a petrol bomb towards police near the parliament building Photograph: Louisa Gouliamaki/AFP/Getty Images Photograph: Louisa Gouliamaki/guardian.co.uk A protester confronts riot police during a demonstration in central Athens Photograph: Vassil Donev/EPA Photograph: Vassil Donev/guardian.co.uk A demonstrator uses a slingshot during clashes with riot police Photograph: Aris Messinis/AFP/Getty Images Photograph: Aris Messinis/guardian.co.uk A protester is surrounded by police Photograph: Pantelis Saitas/EPA Photograph: Pantelis Saitas/guardian.co.uk