Saturday 4th May Theatre Royal Brighton Madame Butterfly performed to a full house – My friend and I were sat in the second circle. During the interval Stewards were running around behind us which was very unsettling. A member of the theatre asked to evacuate the building and said the show was cancelled. The announcement was made from the stage asking everyone to urgently leave the building and she sounded panicky in her address to the audience. The whole evacuation process was not done well and we were all lucky that no one was hurt in the process. Outside the theatre, people were just standing around feeling shocked and puzzled by the evacuation process. We were informed once again that the performance was cancelled, and emergency services, including firefighters and an ambulance, arrived at the scene and invited the crowd to leave. So everyone started to leave allowing them to do their job, except a few curious ones that remained there I don't know how long. Overall extremely poor communication from the theatre staff during the event because if we knew the show did continue we would have waited. However, it is even worse and disappointing that there was no communication from the theatre staff and production company afterwards - except for a silly automated email asking for feedback for the show. We look forward to receiving a refund – though no information as yet.