Radiohead

The victim of the stage collapse was later identified as Scott Johnson, a 33-year-old drum tech for the band. Johnson had also worked as a crew member for Keane, according to reports. Out of the three injured men, two were treated and released with minor injuries while the third was taken to the hospital with a serious head injury. The identities of the other three men have not been revealed yet, but they were all members of Radiohead's tour crew who were setting up the stage, according to the police. As of Sunday morning, it was still unknown what caused the stage to fall down.

Live Nation instantly offered full refunds to concertgoers. Across town, The Flaming Lips were performing and frontman Wayne Coyne offered his support to those affected by the collapse. The Lips also played their cover of Radiohead's "Knives Out" in tribute.

Saturday's incident is the latest in a series of  high-profile, outdoor stage collapses in recent years, most notably the Sugarland concert at the Indiana Stage Fair last August. Last year, three people were injured when the state collapsed at a Cheap Trick concert in Ottawa.

The Toronto date was the last stop of Radiohead's 2012 North American tour. Saturday also marked the 15th anniversary of the UK release of their landmark album OK Computer. Their next leg of touring is slated to begin June 30 in Rome.