The owner of a London theatre where the ceiling collapsed onto the audience had previously said the venue had "suffered years of neglect."
Nica Burns also said in an interview with Theatres Magazine last year that the Apollo Theatre had a problem with damp.
79 people were hurt - nine seriously - when large chunks of plaster came crashing down on the audience at the Apollo on Thursday night.
The owners are due to reveal why the cave in happened later today.
David Babani - a West End theatre producer - says audience safety is taken very seriously:
