Singers Annie Lennox and Radiohead frontman Thom Yorke, as well as actor Ewan McGregor, have all shown their support to six activists who have been climbing the Shard in protest of oil drilling in the Arctic.
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City Hall has warned that Londoners should avoid coming to the centre of the capital on New Year's Eve unless you have a ticket.
Members of the Queen's Guard have been assigned the protection of armed police, amid reports they could be targeted by terrorists.
When Robin Ollington wrote to Buckingham Palace suggesting they introduce a Christmas tree, he didn't expect them to write back...