Greece protests on teen shooting anniversary - in pictures

A protester is engulfed by flames as he throws a petrol bomb at riot police guarding the Greek parliament building in Athens Photograph: Yannis Behrakis/Reuters

A Greek police officer clashes with two masked protesters as others watch on Photograph: KeystoneUSA-ZUMA / Rex Features/KeystoneUSA-ZUMA / Rex Features

Police try to avoid the flames erupting from a molotov coctail in front of parliament Photograph: Louisa Gouliamaki/AFP/Getty Images

Riot police lead off a bloody-faced protester Photograph: Louisa Gouliamaki/AFP/Getty Images

A youth kicks a tear gas grenade in Athens' Syntagma (Constitution) square Photograph: Yannis Behrakis/Reuters

A protester wields a petrol bomb during protestx at the northern port of Thessaloniki Photograph: Nikolas Giakoumidis/AP

Young protesters chant slogans as the Athens protest continues into the evening Photograph: Kostas Tsironis/AP

Protesters pull down a police fence Photograph: Yannis Behrakis/Reuters

A protestor throws another molotov cocktail at riot police Photograph: Angelos Tzortzinis/AFP/Getty Images

Riots continue into the night outside the Greek parliament building Photograph: KeystoneUSA-ZUMA /Rex Features