Inquiry into theatre stage collapse
Some fans had dressed in costume for the Sound of Music show
An investigation has been launched after a theatre stage collapsed, injuring up to 20 people in Birmingham.
Three people are believed to have been seriously injured in the accident at Birmingham's Alexandra Theatre on Tuesday night.
Part of the stage collapsed just before a performance of the Sound of Music when members of the audience were invited to join in a song on stage.
Inspector Paul Ford from West Midlands police said the people fell about 20 feet in to the orchestra pit. click for more