Five men were arrested outside the Chinese Embassy as they tried to scale security barriers. The scenes overshadowed the West End's New Year celebrations, which saw more than 250,000 revellers flock to Chinatown, Trafalgar Square and Leicester Square to see in the Year of the Ox. About 150 demonstrators chanted Free Tibet slogans outside the Embassy in Portland Place, surrounding Mr Wen's motorcade and waving posters proclaiming: "Wen Jiabao: Tibetan blood on your hands".