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Part of Apollo Theatre roof collapses in London

19 December 2013 Last updated at 21:50 GMT

Part of a roof in the Apollo Theatre in central London has collapsed during a performance.

The theatre in Shaftesbury Avenue was packed for a performance of the Curious Incident Of The Dog in the Night-Time.

Simon Usborne, who was in the audience, said he heard cracking which sounded like "sudden structural failure".