BBC News website readers have been sending in photos of the G20 protests. This protester's armoured car was spotted at Bishopsgate by a bank employee.
Police gather around the armoured car and keep a close eye on it. Photo: Johnny Chatterton
One protester took this photo from outside the Bank of England. Photo: Mr Franks
A worker took this photo from inside the Bank of England. The protesters outside the building were shouting for them to jump.
Protesters carry a dead canary to signify the death of Canary Wharf. Photo: Rhys Iffland
Barnaby Flynn heading to the Bank of England with the Simpol (Simultaneous Policy) mobile musical street stall. Photo: Matt
This protester was spotted close to the Royal Exchange. Photo: Abby Dickens
Protesters coming over London Bridge. Photo: Sharyn Camp
Emma Willoughby took this photo of the march from London Bridge. She says there is a peaceful atmosphere.
Jane Cottle: "The police have blocked Princes Street off entirely to pedestrians so I'm on the roof of our building watching events unfold."
One of the four horsemen of the apocalypse. Photo: George Poel. Send your photos to email@example.com. For terms and conditions see right. See your pictures on flickr.com/bbc_haveyoursay