Edit: The Image of the Theatre is not the right one.
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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.
An eyewitness said she heard "a crackling" noise before the collapse at about 20:15 GMT. Another eyewitness said the "entire dome roof" fell on audience members seated in the stalls.
The Metropolitan Police said they were "aware of a number of casualties".
London Fire Brigade eight fire engines were attending.
Witnesses said they saw people being leaving the building, covered in dust and debris and some were crying.
'Strange crackling noise'
Amy Lecoz, who was at the theatre with her two children, aged 16 and 19, said: "The entire dome roof fell down on the audience just in front of us.
"We were protected by the balcony above and we ran. People started screaming.
"We thought it was water... We thought it was a part of the show. I grabbed my kids and ran."
Another witness said she heard a "strange crackling noise" before "the roof just crumpled".
The theatre "suddenly went dark" with "dust clouds everywhere", she said.
"You could see everyone ran off the stage... it went dark".
