Three people have been shot, according to Bolingbrook Police Captain Anthony Columbus, but the condition of the victims is not known.
Bolingbrook Police were dispatched to the facility around 6:25 a.m. local time, and there is now a heavy law enforcement presence in the area as they search for the offender, according to police.
It was unclear how many people had been shot, and police were unable to provide the condition of those injured.
CNN has contacted WeatherTech for comment. The company manufactures automotive products, including floor mats.
The village of Bolingbrook is a southwest suburb of Chicago, approximately 30 miles from the city center.
