An explosion at a U.S. Army ammunition plant in Missouri on Tuesday left one person dead and three others injured, the military said.
The Army Joint Munitions Command said the explosion happened Tuesday afternoon at the Lake City Army Ammunition Plant in Independence, Mo., according to The Associated Press.
A spokesperson told the AP that no more information was immediately available.
The factory makes small-caliber ammunition and also serves as the North Atlantic Treaty Organization's National and Regional Test Center.
Mark Carrick, the deputy fire chief in Independence, said the ammunition plant has its own fire brigade and it was working on the blast, according to the AP.
The plant has more than 400 buildings on nearly 4,000 acres, and more than two dozen Army civilians are among its employees, according to the Joint Munitions Command's website.
The plant has had previous explosions, most recently in 2011 when a blast injured six people in a construction area where powder was loaded into bullets, the Kansas City Star noted.
Updated: 4:11 p.m.