Once again the London fire brigade and ambulance service did amazing work last night at the #Apollo theatre,the real heroes of this city!
London Fire Brigade and London Ambulance Service have done an incredible job this evening... #ApolloTheatre
Boris Johnson praised the emergency services' 'exemplary' coordination, but said it was too soon to know the cause of the collapse.
"Another split second, and instinct took over. There was no need for an alarm or a call to evacuate..." an eyewitness account.