The only privately-owned version of Edvard Munch's "The Scream" has gone on show in London for the first time before it is sold at auction in New York.
The famous picture is on display at Sotheby's in the capital for a week and is expected to fetch £50.4 million or more at the Impressionist and Modern Art Evening Sale in New York on May 2.
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People who voted remain in the EU referendum have gathered at a protest in London to ask the government to make a plan.
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Police say they are keeping an open mind about the motive and appealed for anyone with information to come forward.