At approximately 4:03 p.m. Saturday, the Marion County Sheriff’s Office received a 911 call of an explosion that had occurred at 2079 180th Pl. south of Attica. It was reported that a female had been seriously injured in the explosion. Local fire departments, emergency medical services, and law enforcement responded to the scene where a 56-year-old female was pronounced deceased. The investigation determined that a gender reveal announcement resulted in the explosion which caused a flying piece of debris to strike the victim. The Marion County Sheriff’s Office was assisted in the investigation by the Iowa State Fire Marshall’s Office, The Bureau of Alcohol, Tobacco, and Firearms, the Indiana Township Fire Department, the Knoxville City Fire and Rescue, and the Marion County Medical Examiner’s Office.