BELVIDERE, Ill (CBS) ―
A truck driver fueling his vehicle was struck by debris a quarter mile away from the factory at the tollway oasis, according to the Illinois State Toll Highway Authority.
At least three other people were hospitalized. Their conditions were not immediately known.
Police say a gas line ruptured at the plant, causing the explosion.
The blast shook homes at least a mile away, according to the mayor of Belvidere. Mayor Frederic C. Brereton said there were no reports of injuries among the factory workers.
The factory manufactures industrial crystals, the mayor said.
Pictures from the scene showed at least one side of a factory tower blown away, exposing beams. Debris from the blast was visible on the ground. Aerial photos showed at least three sides were damaged, with twisted interior support beams clearly visible.
The factory is located at 701Crystal Parkway, between Belvidere High School and the I-90 tollway oasis.
According to the company’s website, the Tokyo-based company opened the Belvidere crystal operation in 2003. NDK manufactures and supplies crystal products used in mobile devices, automobile electronics and other high-tech devices.
CBS 2’s Kris Habermehl contributed to this report.