BBC News website readers have been sending in photos of the G20 protests. All police leave was cancelled as the city prepared for a day of protests on Wednesday. Photo: Tom Riddington.
The Bank of England became the focal point for protesters, although police cordons kept many people away. Photo: David Burden.
Francis Maderia noted a strange atmosphere in the City of London while taking a walk during his lunch break. Photo: Francis Maderia.
Many employees stuck inside their offices had to watch the gathering protests. Photo: Kobir Rahman.
Michael Atzei saw several fires that were started in the city as the day progressed...
... he also spotted clashes between the police and protesters. Photo: Michael Atzei.
More protests are expected on Thursday. Photo: Tom Riddington. Send your photos to email@example.com. For terms and conditions see right. See your pictures on flickr.com/bbc_haveyoursay