One person is dead and several others are injured after an overnight fire at a Tyson Foods plant in southwest Georgia, the company said Friday. Tyson said it was working with local authorities to determine the cause of the fire.

The Retail, Wholesale and Department Store Union, which represents 1,600 workers at the plant, said Friday that a boiler had exploded. Tyson said it was working with local authorities to determine the cause of the fire. Officials said a fire burned for about three hours.