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Police stand guard on Whitehall in London, Britain on May 23, 2019. Police closed Whitehall after a suspicious package was found near Downing Street in London on Thursday. (Xinhua/Ray Tang)
Police stand guard on Whitehall in London, Britain on May 23, 2019. Police closed Whitehall after a suspicious package was found near Downing Street in London on Thursday. (Xinhua/Ray Tang)