(CNN) -- An air-supported canopy over the Dallas Cowboys' practice field collapsed during a heavy thunderstorm Saturday afternoon, leaving one person critically injured and six others hurt, firefighters said.
As many as 80 people may have been inside the facility when it was blown down shortly before 3:30 p.m. (4:30 p.m. ET), said Mike Adams, a dispatcher for the Irving, Texas, fire department. Rescuers were continuing to comb through the wreckage beneath the fallen canopy, but, "Everyone as far as we know is accounted for," Adams said.
Video from CNN affiliate WFAA showed the canopy caving in during a heavy storm, sending players, coaches and a handful of reporters and photographers scrambling to escape.
WFAA-TV photojournalist Arnold Payne, who was on the sidelines of the indoor practice field when the collapse occurred, said the wind "just started shaking the sides of this b
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