Madison, Ramadan 6, 1438, Jun 1, 2017, SPA -- Recovery crews searched a mountain of debris for two workers on Thursday following an explosion at a corn mill plant that killed at least one employee, injured about a dozen others and leveled parts of the sprawling facility in southern Wisconsin, authorities said. Sixteen employees were working when the blast was reported around 11 p.m. Wednesday at the Didion Milling Plant in Cambria, a small community about 45 miles northeast of Madison, Columbia County Sheriff Dennis Richards said during a news conference Thursday. There was no immediate word on what may have caused the blast at the plant, AP reported. --SPA 23:15 LOCAL TIME 20:15 GMT www.spa.gov.sa/w419428