
Euro 2012: Russia and Poland fans clash —
Polish and Russian football fans clash in Warsaw, Poland, on Tuesday ahead of the match between Poland and Russia at the Euro 2012 championships.

Euro 2012: Russia and Poland fans clash —
Polish police stand at one of the entrances to the pitch before the Group A preliminary round match.

Euro 2012: Russia and Poland fans clash —
A Polish journalist, second right, is beaten by football fans in Warsaw.

Euro 2012: Russia and Poland fans clash —
An injured polish soccer fan lies on the ground.

Euro 2012: Russia and Poland fans clash —
Polish supporters challenge Russian football fans during clashes.

Euro 2012: Russia and Poland fans clash —
Polish and Russian fans clash during a march of Russian supporters to the National Stadium in Warsaw.

Euro 2012: Russia and Poland fans clash —
A Polish soccer fan lies on the ground after clashing with Russian supporters.

Euro 2012: Russia and Poland fans clash —
Polish riot police stand guard after the group A match between Poland and Russia.

Euro 2012: Russia and Poland fans clash —
Polish and Russian soccer fans fight before the match between Russia and Poland.

Euro 2012: Russia and Poland fans clash —
Polish and Russian soccer fans clash outside of the National Stadium in Warsaw.

Euro 2012: Russia and Poland fans clash —
Polish riot police stand guard during clashes with soccer fans in front of the National Stadium before the match between Poland and Russia.

Euro 2012: Russia and Poland fans clash —
A Polish fan is arrested by police before the Russia-Poland match.