Commuters and tourists crossing one of the Golden Jubilee footbridges alongside Hungerford Bridge on Wednesday found a 15-foot inflatable red ball wedged into the structure of the bridge.
New York artist Kurt Perschke has travelled the world with his RedBall Project and after a tour of South West England it has arrived in London.
On Thursday RedBall will be at the northern end of Waterloo Bridge before moving to Covent Garden on Friday.
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