Firefighters battle large Joliet building fire, explosion; 2 injured, officials say | VideoJOLIET, Ill. (WLS) -- Firefighters battled a large blaze that sparked an explosion in Joliet Thursday afternoon. Joliet firefighters responded just before 2:20 p.m. to a reported fire at 1 S. Eastern Ave. When they arrived, there was a large amount of smoke, Joliet fire officials said. At one point, the fire broke through the roof and caused a partial collapse, fire officials said. There was a large emergency response, as firefighters worked in an industrial area to put water on the large facility that appeared to be severely damaged.