[UPDATE] Poultry plant disaster kills at least 119 in China CHANGCHUN, China, June 3 (UPI) -- Pressurized ammonia exploded in a poultry slaughterhouse in China Monday, sparking a fire that killed at least 119 people and injured dozens, officials said. China Daily and The New York Times reported a death toll of 119. China's state-run Xinhua News Agency reported that besides those killed, 54 were injured. "The fire was so quick and intense it was very difficult to escape," China Daily quoted Chen Hengwu, a worker at the factory who got out unscathed, as saying. China Daily said the ammonia was used in the Jilin province plant's cooling system. Investigators said the workers responsible for the explosion that sparked the blast and fire had been detained. More than 300 workers were in the Jilin Baoyuanfeng Poultry Co. plant in Dehui, in northeastern China, when the fire began. Survivors said they heard a sudden bang and saw dark smoke, Xinhua reported. It took some 500 firefighters about 6 hours to extinguish the blaze, which broke out just after 6 a.m., officials said. It was unclear whether the fire erupted before or after the explosion. About 100 workers escaped from the plant, which had its gate locked when the fire began, survivors said. The complex interior structure of the plant and its narrow exits made it difficult for rescuers, a responder said. The environmental impact of the fire was being monitored, Xinhua said. People living nearby said they could smell a pungent odor and some said they were suffering headaches. Jilin Baoyuanfeng Poultry Co., located northeast of the provincial capital Changchun, employs 1,200 employees and has annual output of 67,000 tons of chicken products.