Set collapses on to audience at Roundhouse in Camden
Three people were injured when part of the set collapsed on to members of the audience during an acrobatic show at a north London venue.
It happened at the Fuerzabruta show at the Roundhouse in Camden on Friday night.
Eyewitness Steve Johns, 68, said: "The sail collapsed on to technicians and members of the public below."
Three people were treated for minor injuries by London Ambulance and taken to the Royal Free Hospital.
Fuerzabruta's website describes the show as a "mind-blowing, heart-pounding international theatrical experience".
During the show, members of the audience are encouraged to walk around underneath the performing acrobats.
On Friday night, the Roundhouse, which is yet to provide a statement, tweeted: "For anyone who couldn't see tonight's Fuerzabruta performances, please bear with us & we will contact you directly from Monday. Thank you."
Photographer Mr Johns, who was at the performance with his daughter and son-in-law said: "Half an hour into the spectacular Fuerzabruta show in the Roundhouse this evening the sail which was spinning above the crowded floor on which acrobats were performing, collapsed on to technicians and members of the public below.
"Fortunately, due to the efficient security service and the calm of crowd, the worst was avoided.
"I saw only one person wounded on the ground before I was made to leave. The rest of the show was cancelled."
London Ambulance said it treated one person for a facial injury, one for an ankle injury and one for concussion.
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