Waukegan, Illinois – An employee was killed and four injured on Friday in an explosion in a Silicon Factory in Illinois, authorities said. Two others are missing and officials said they were unlikely to have survived, CBS Chicago reported.
Emergency response teams in Waukegan City investigated the missing employees for hazardous materials and the structural integrity of the building. Waukegan is located about 40 miles north of Chicago.
"Our thoughts and prayers go to the families and friends of all who are involved in this dreadful incident," said Waukegan Fire Marshal Steven Lenzi in a statement. "Our staff worked tirelessly through the night to control this scene with the help of many neighboring agencies."
It was not immediately clear what had caused the explosion that damaged at least five other buildings in the area. Officials estimated that the damage would cost more than $ 1,000,000.
AB Specialty Silicones, which owns the plant, produces and sells various types of silicone, reported CBS Chicago.
The Lake County Sheriff Office tweeted on Friday that they knew of a "very loud explosion" and a "ground shake" near the Gurnee-Waukegan border. They urged people to stay away from the area to get first responders working.