According to Reuters, the fatal explosion occurred in a primer mixing cell at the Lake City Army Ammunition Plant around 1 pm CDT Tuesday.
The facility was quickly secured by U.S. Alcohol, Tobacco, Firearms and Explosives agents and remained closed for the remainder of the day. Workers were scheduled to return to work Wednesday.
The identity of the employee killed in the explosion has not been released to the public.
The following information was provided by the Occupational Safety and Health Administration (OSHA):