Police and protesters battle each other outside the RBS bank in Londons financial district during the London G20 summit in April 2009.

G20 Bank of England RBS riot protest, City of London. London, UK. 01/04/2009.

On the day before G20 (G8 plus 12 satellite dependant) leaders assemble in London to manage the G8 nations post crisis financial affairs, opponents gather at the Bank of England to object.

A large police operation unfolds with the intention of qualifying a violent encounter with protesters. All exits and entrances to the junction are closed and police begin to compress the crowd together. Throughout, police refuse to allow people to leave.

A short time later officers withdraw just passed RBS (Royal Bank of Scotland) sacrificing it for political reasons.

The bank is then attacked. As the day drags on police continue to compress the crowd causing a number of serious injuries.

Bank of England. London, UK. 1st April 2009.

Graffiti is scrawled on the side of the Bank of England.

Police clash with the crowd.

A man is injured and appeals to the police for calm.

A police officer then batons him across his legs.

The view from inside RBS.

A man and a police officer fight outside the bank as the officer attempts to arrest the man.

Officers photograph the damage.

A woman is carried away from police lines bleeding badly from a head wound. She has been batoned while carrying out a sit down protest.

The situation descends into chaos as police continue to compress the crowd in order to spark violence.