Fire heavily damaged two ambulances and the station where they are kept in Shelby County, Ohio.
A neighbor who heard explosions and glass breaking called 911, according to WHIO.
The facility is located at 5125 Russia-Houston Road. Authorities said a neighbor called 911 after hearing the sound of breaking glass and explosions.
No one was injured, and the fire was brought under control quickly, but not before leaving the Houston squad building heavily damaged.
One of the ambulances was being housed at a local fire station. EMS officials say there has been no disruption in service to the community.
The cause of the fire remains under investigation by the county and state fire marshals as well as an ATF agent.