Damage reports poured in one day after an explosion at the site of an old army ammunition plant in northwest Louisiana, law enforcement officials said. Webster Parish Sheriff Gary Sexton said the bunker blast late Monday resulted in a flood of phone calls to his office and fears that the incident was the result of a meteor hitting the ground, KSLA-TV Shreveport, Louisiana said. The force of the explosion was felt across a wide area that extended to Shreveport and beyond. The National Weather Service issued a statement describing radar imagery showing a plume of smoke and debris near where the Camp Minden Louisiana Army Ammunition plant is located. Sexton described the bunker that exploded as igloo-shaped structure constructed out of concrete. It belonged to a company called Explo Systems, Inc. Louisiana State Police, the Webster Parish Sheriff\'s Office and the military are investigating what caused the blast.