Theatre-goer Dee Kearney was watching The Curious Incident of the Dog in the Night-Time when actors from the show told the audience to "Watch out!"
Then what we felt was debris falling on us, a loud bang, and then all of a sudden there was a coat of dust that came on us.
It was a thick cloud of dust, so you couldn't actually tell what was happening. You knew it was coming from above but you didn't know what was actually happening.
More top news
A production firm is to be prosecuted over an incident which left Harrison Ford injured during the filming of the latest Star Wars movie.
The Chancellor's younger brother Adam Osborne admitted having a two-year sexual relationship with a vulnerable patient.
Junior doctors could have a case to take the NHS to tribunal over new contracts being imposed upon them, an employment lawyer has warned.