collapse of a section of the facility's roof and wall. Three workers were killed, a fourth died from burn injuries five months later, while 67 others – including three firefighters – were hospitalized for burns and exposure to ammonia gases. The explosion happened when natural gas was purged into the interior of the building during commissioning of a new, gas-fired water heater. This explosion was directly responsible for an amendment to the National Fuel Gas Code prohibiting fuel gas piping systems in large buildings from being purged indoors. On March 3, 2010, ConAgra announced that the Garner plant would close in approximately 18 months, and Slim Jim production would be moved to a plant located in Troy, Ohio. See also Impact of the COVID-19 pandemic on the meat industry in the United States References External links Companies listed on the New York Stock Exchange Food and drink companies established in 1919 1919 establishments in Nebraska Food recalls Food manufacturers of the United States Condiment companies of the United States Multinational food companies