The Royal Albert Hall had to be evacuated last night after a small fire broke out. The London Fire Brigade was called shortly after 7 o'clock and a classical music concert had to be cancelled.
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Richard Welch had to pause at several points during his evidence to regain composure as he spoke of his experiences that night.
Residents want to send a message about the dealing they say has become a normal part of daily life there.
The film-maker and Turner Prize-winning artist plans to oversee photographs of tens of thousands of schoolchildren.