The number of arrests made by British police during Wednesday's city-wide G20 London summit protests has risen to 63, police said.

A G20 protester stands facing the police outside the Bank of England in the City of London, April 1, 2009. The number of arrests made by British police during Wednesday's citywide G20 London summit protests has risen to 63, police said.[Xinhuanet.com]

Most were held under public order act, breaching of peace, burglary or arson on Royal Bank of Scotland building, criminal damage, and possession of police uniform or drugs. Other offenses include carrying offensive weapon, threatening behavior, obstruction of police or highway.

Earlier on Wednesday afternoon, protesters clashed with police in central London after some trouble-makers ran out of control and started to smash the windows of Royal Bank of Scotland.

A man was also found dead after collapsing at a protest camp near the Bank of England in central London.

A member of the public told a police officer that "there was a man who had collapsed round the corner," said a police statement.

The officer then sent two police medics through the cordon line and into St Michaels Alley where they found a man who had stopped breathing.

"The officers gave him an initial check and cleared his airway before moving him back behind the cordon line to a clear area outside the Royal Exchange Building where they gave him CPR," it added.

G20 protesters smash windows of the Bank of England in the City of London, April 1, 2009. [Xinhua Photo]

The officers took the decision to move him as a number of missiles believed to be bottles were being thrown at them.

The man was pronounced dead when he was taken to hospital.

Thousands of people gathered outside Bank of England, Royal Exchange and Royal Bank of Scotland in the financial center of London and set up camp there to express their anger at the " irresponsible," "reckless" fat-cat bankers who pocket fat bonuses even when banks were plunged into difficulty.