Large flames from the Chemtool plant caused heavy smoke to cover the air in the area.
A mandatory evacuation order is in place for parts of the area, according to the Rockton Police Department.
Rockton Fire ordered the mandatory evacuation, and the notice affects all residents and businesses south of the plant on Prairie Hill Road. Drivers are advised to avoid the area, according to Rockton police.
This is a developing story, please check back for the latest.
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