This image from video provided by KMOV-TV in St. Louis shows an injured worker being wheeled from inside the American Steel plant in Granite City, Ill., Thursday, March 7, 2013, where an explosion ... more 
This image from video provided by KMOV-TV in St. Louis shows an injured worker being wheeled from inside the American Steel plant in Granite City, Ill., Thursday, March 7, 2013, where an explosion injured at least 10 people, three critically. (AP Photo/Courtesy KMOV-TV in St. Louis) TELEVISION OUT less 
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Associated Press | Photo By Courtesy KMOV-TV in St. Louis
Thu, Mar 7, 2013 1:32 PM EST