Indiana has been evacuated and cordoned off, as witnesses reported feeling chemicals burning their lungs and throats.
Officials have confirmed a spill of sulfur dioxide.
Officials have urged people to stay out of the area, and not to leave their houses if they live near the spill.
Sulfur dioxide is a colorless gas with a suffocating odor, which can cause serious or permanent injury when inhaled.
Witnesses told the channel that they smelled and even tasted acid at the time of the leak. Some described a burning sensation in their lungs and throats.
https://www.rt.com/usa/312563-chemical-spill-indiana-terre-haute/