Apollo Theatre Ceiling collapses at London's and Dozens of people injured after part of theatre roof caved in during packed performance, officials say.

                   

A ceiling has collapsed at London's Apollo Theatre, wounding dozens of people and prompting a swift search-and-rescue operation.

The London fire department said about 700 people were inside the theatre in the British capital when the incident occurred on Thursday evening.

"We saw the ceiling give way and it just dropped down onto the stalls. There was dust everywhere and people were screaming," said Steve George, who was in the audience

People were quickly ushered out of the theatre, he said.
In a message posted to Twitter soon after the incident, the fire department confirmed that all trapped audience members had been freed.
More than 75 people were injured, emergency services said, including seven who were taken to hospital with more serious injuries.
It was not immediately clear why the ceiling caved in.