BBC News website readers have been sending in photos of the G20 protests. Graffiti outside the Royal Exchange. Photo: Abby Dickens
Police clash with protesters on Threadneedle Street. Photo: Simon Crouch
A line of police outside the Bank of England. Photo: Peter
Richard Bristow: "Protesters setting up camp on Bishopsgate, behind the NatWest tower."
Richard Bristow: “Police attempted to stop the first few tents being erected but became overwhelmed and backed off.”
Protesters near Aldgate, east London. Photo: Francis Madeira
People of all ages have turned up to protest. Photo: Natasha Culzac
Jane Cottle: “The atmosphere is like a carnival - I can hear whistles being blown and horns tooted and police sirens every now and then.”
Natalie Barone saw this injured police officer on Liverpool Street.
Rory Buchan: "Police on horseback watch the scene unfold on Threadneedle Street."
A 'dead' banker. Photo: Danny Webb. Send your photos to email@example.com. For terms and conditions see right. See your pictures on our Flickr group flickr.com/bbc_haveyoursay