Nick Harding from London Fire Brigade said the audience at the Apollo Theatre were walking around in a dazed condition after the ceiling collapsed.
The Kingsland Fire Station manager said, "People were in a lot of shock ... a lot of them had head injuries and other injuries so it was quite a confused scene."
More top news
Hand-written jokes meticulously archived by comic legend Tommy Cooper have been acquired at auction by the Victoria and Albert Museum.
The previously popular themed restaurants lost customers when it introduced 'significant price increases' and removed value offers
Abigail Wyatt is charged with causing a public nuisance in connection with the closure of a bridge on the M5 that caused massive tailbacks.