Our Olympics Correspondent Simon Harris is tweeting from a briefing on the London 2012 Opening Ceremony.
Artistic director Danny Boyle (who directed the Oscar-winning film Slumdog Millionaire) is describing his vision for the show.
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Hundreds of thousands of people turned out for the Notting Hill Carnival today with the weather just managing to hold off.
A yellow weather warning has been issued for London today and tomorrow with "thundery downpours" expected.
Police are appealing for witnesses after a crash involving a car and three pedestrians in Islington.