The headquarters of the European Central Bank (ECB) is cordoned off by the police during an anti-capitalism "Blockupy" demonstration in Frankfurt Reuters

Protesters hold a sign during an anti-capitalist "Blockupy" demonstration in Frankfurt Reuters

An injured journalist gets help getting pepper spray washed out during an anti-capitalism "Blockupy" demonstration in Frankfurt Reuters

Riot police stand guard during an anti-capitalism "Blockupy" demonstration in Frankfurt Reuters

Riot police stand guard during an anti-capitalism "Blockupy" demonstration in Frankfurt Reuters

Protesters hold umbrellas with slogans written on it during an anti-capitalism "Blockupy" demonstration in Frankfurt Reuters

German riot police hold pepper spray canisters as they stand guard during an anti-capitalism "Blockupy" demonstration in Frankfurt Reuters

Protesters hold posters during an anti-capitalism "Blockupy" demonstration in Frankfurt Reuters

An man gets help getting pepper spray washed out during an anti-capitalism "Blockupy" demonstration in Frankfurt Reuters

Hundreds of German police officers block a road during an anti capitalism Blockupy protest with several thousand people taking part in Frankfurt AP

A protester holds a poster reading "Clip the banks' wings" during an anti-capitalism "Blockupy" demonstration in Frankfurt Reuters

Riot police stand guard in front of protesters during an anti-capitalism "Blockupy" demonstration in Frankfurt Reuters

German police officers block anti capitalism Blockupy protesters with several thousand people taking part in Frankfurt AP

German riot police stand guard in front of protesters during an anti-capitalism "Blockupy" demonstration in Frankfurt Reuters

Blockupy protesters clash police in the city of Frankfurt, Germany AP