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Seven people were injured, one critically, in Dallas on Friday afternoon when ice fell from the roof of Cowboys stadium, according to the Dallas Morning News.
Officials have since closed down all but one entrance into the stadium.
"All stadium entrances have been closed except for the truck tunnel, which is away from the building by a very safe distance," NFL spokesman Brian McCarthy said. "All workers and visitors will now enter and exit through the tunnel until further notice."
Five of the seven people injured were taken to area hospitals. The accident happened at about 1:15 p.m. (CT), according to the paper.