DECATUR, ILLINOIS, US — Five of eight injured employees remained hospitalized Monday and operations were suspended following an explosion Sunday night at the East Plant within the company’s industrial complex in Decatur, Illinois.

ADM said the explosion occurred at 7:11 p.m. at the plant, which produces soybean oil and white flake for soybean protein production. ADM immediately contacted the Decatur Fire Department, and the main fire was extinguished overnight.

Several structures were severely damaged in the blast, including a 10-story building and adjacent buildings, the fire department said. Eight workers were injured, and six were taken by ambulance to a local hospital.

“Five employees remain in the hospital receiving treatment for their injuries, and our priority is providing our injured colleagues and their families support,” ADM said Monday afternoon.

A confirmed cause of the explosion has not been determined, and the soybean plant and adjacent corn processing plant were temporarily shut down until operations could be safely resumed, ADM said.

This was the third workplace safety incident for ADM in Decatur this year.

In April, three employees were injured in an explosion at one of the grain elevators at the soybean processing facility at ADM’s West Plant.

Last month, two Decatur firefighters were hurt while battling a third-alarm fire in the feed house of the company’s corn processing plant.