Radiohead Announces 2012 U.S. Tour Dates
Radiohead Announces 2012 U.S. Tour Dates

Helicopter views of the collapsed stage at Downsview Park in Toronto Saturday (Video: Associated Press)

A stage at Toronto's Downsview Park collapsed hours before a scheduled Radiohead concert, killing one person and injuring at least three, CBC reported, citing Toronto paramedics. One person was transported to Sunnybrook Hospital in serious condition while two others assessed at the scene have minor injuries, according to the report. The person killed was reportedly a stage technician; the stage collapsed while it was being prepared for the show, according to the Associated Press.

The band and venue have announced that the concert is cancelled. Gates had been scheduled to open at 5 p.m.

The victims were setting up a stage in the park when a "scaffolding-type structure collapsed" about 40 to 60 feet above the main stage area, Toronto fire Capt. Mike Strapko told CNN. The incident occurred around 4 p.m., Toronto Police Service Constable Harrison Ford told CNN. The weather was good at the time, with no storm or significant winds, he said.

"It was a really, really loud noise," said Amy Kang, 22, who was working at a beer tent about 100 meters away from the stage, told the Toronto Star. "I think some people were in there."

Last summer saw a number of fatalities and injuries due to stage collapses, with five people killed at a Sugarland concert in Indiana, three dead at a festival in Belgium, and eight injured at a Cheap Trick concert in Ottawa. will have more on the situation as it develops.