BLACK BETSY, W.Va. -- Firefighters had a fire at the Airgas plant in Black Betsy under control this morning, Putnam County 911 dispatchers said. Dispatchers were notified about the fire at 9:30 a.m. By 10:30 a.m., the fire was under control at the plant, located on W.Va. 62, according to a dispatcher. No injuries had been reported. In May, two men were hospitalized after being burned from a blast at the plant. Fifty cylinders of acetylene were believed to have been the source of the explosion. Emergency dispatchers weren't sure what caused today's fire. According to the company's website, Airgas is "the largest U.S. distributor of industrial, medical and specialty gases, and hardgoods, such as welding equipment and supplies. Airgas is also a leading U.S. producer of atmospheric gases, carbon dioxide, dry ice, and nitrous oxide, one of the largest U.S. distributors of safety products, and a leading U.S. distributor of refrigerants, ammonia products, and process chemicals."