HERSEY TWP. — While firefighter battled a blaze on Saturday in Hersey Township, an explosion heard nearby wasn't associated with the fire.

The Hersey Township Fire Department responded to the structure fire at about 6:30 p.m. on Oct. 21, at 1654 Riverview Drive, said Fire Chief Jack Boden.

"Half of a mobile home caught fire and was destroyed, making it uninhabitable and a total loss," Boden said.

Along with the Hersey Township Fire Department, firefighters from the Reed City and Evart fire departments responded to the scene, as well as Osceola County EMS.

While the home was a total loss, firefighters were able to save guns, ammunition, valuables and other sentimental possessions, Boden said.

"The trailer was a weekend home and nobody was there at the time," he added.

A loud explosion was heard in the same time frame as the fire, but Boden said the noise was not associated with the structure burning.

"There was no explosion at the residence other than the normal popping noises from a fire," he said. "The loud noise was a separate thing and is believed to have been sonic booms from an aircraft."

Emergency personnel was on scene for about two hours. The cause of the fire is still under investigation, but Boden said nothing appears to be suspicious.