Police made several more arrests after a group of EDL supporters made their way back to Downing Street before being dispersed by police.
Scotland Yard said a total of 13 people had been arrested for a range of public-order offences throughout the day.
The figure is thought to include both EDL supporters and anti-fascist protesters.
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"You are one of the silence breakers and we all owe you a debt of gratitude."
Maximum temperature 11 C (52 F).
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