Authorities said the outdoor structure came tumbling down shortly before 4:00 p.m. Saturday at Downsview Park in Toronto.
The deceased was not identified, but a police source said it was a man in his 30s. The condition and the identities of the injured have not been released.
After the accident the band posted a message on Twitter saying in part: “Due to unforeseen circumstances tonight’s at Downsview Park has been cancelled. Fans are advised not to make their way to the venue.”
The accident comes on the 15th anniversary of the release of the group’s classic album, “OK Computer.”
The accident is under investigation.