It happened at the East Plant of the Archer-Daniels-Midland processing complex in Decatur. ADM said the explosion happened at about 7:11 p.m.
The entire ide of the building was blown off.
[Ads /]
Officials told CNN that at least eight people were injured. Five people remained hospitalized on Monday night, ADM said.
Details on the conditions of the injured people were not immediately available.
"Our priority is providing our injured colleagues and their families support," ADM said in a statement.
[Ads /]
On Sunday night, ADM said they don't have a confirmed cause of the explosion.
Gov. JB Pritzker said in a statement, "Our hearts are with the families of those affected by the explosion in Decatur last night. My administration is in touch with those at ADM and have offered state support in any way we can... Wishing a speedy recovery for the workers."
The East plant, which produces soybean oil and white flake for soybean protein production, and the adjacent corn processing plant are both down until operations can safely resume, ADM said.
An investigation is underway to find the cause of the explosion.