PITTSBURGH—A Pittsburgh-area man was critically injured when a house that contains a gun shop exploded.

Brentwood Mayor Dennis Troy says that Frank Mihalovich suffered burns in the Thursday afternoon explosion. Troy says it appears that the explosion occurred in the basement of the home, which houses Frank's Guns, the Pittsburgh Tribune Review ( http://bit.ly/1b6GElM) reports.

The county Fire Marshall and the Bureau of Alcohol, Tobacco and Firearms are investigating.

Mihalovich was reportedly taken to an area hospital.