A downburst of air from a thunderstorm is believed to havecaused the main stage to deconstruct at around 7:20 p.m. ET, Environment Canadatold CBC News.
A 49-year-old man, who was working at the show, enduredinjuries in his pelvis, leg, and abdomen, local paramedics told CBC. Anotherman is believed to have suffered spinal injuries.
According to the CBC, the OntarioMinistry Of Labour is investigating the incident and has an inspector on site.
Cheap Trick managed to get off the stage before they were injured saidCBC reporter Stuart Mills.
"A giant gust of wind picked up a tarp and garbage fromacross the field and flung it toward the audience and lifted the whole stage --where Cheap Trick had been playing -- and almost like a convertible in a car,just folded it backward in the same direction," Mills said.
The stage fell apart in "less than 10 seconds," concert-goerLeanne Wilson told CBC.
Cheap Trick "were playing right until it fell," Wilson said."And then instantly everybody was just running and screaming ... I was stunned.I'd never seen anything like that before."
Ottawa Mayor Jim Watson, who was on the stage 20 minutes before the devastation, toldCBC he was grateful things were not worse.
"You could imagine the thousands of people trying to leave thestage area," Watson said. "We're lucky there was no trampling. People actedthoughtfully and respectively to their fellow fans."
Cheap Trick said everyone in the group was fine in a messageposted on the band's website. "Everyone is shaken up but band and crew are allfine," the message said. "Cheap Trick hopes that everyone who attended the showis also ok."
Band manager Dave Frey told CNN that a member of the group'screw was hospitalized.
"One of our drivers will spend the night in the hospital andthough we're not sure how, Cheap Trick are grateful and happy to say thateveryone, including all the concert-goers, are OK," Frey said.
The Ottawa Bluesfest, which has been held annually since 1994,has featured the likes of James Brown, Melissa Etheridge, Black Eyed Peas,Rihanna, Etta James, Bob Dylan, Kanye West, INXS, Keith Urban, and Carlos Santana,among others.
Photo credit: AP