Responding crews found one mobile home engulfed and another partially in flames, he said.
In all, two of the trailers were destroyed, while four more sustained exterior damage.
Trusty said that nobody was inside the mobile homes, and the only injury was a firefighter who was “overcome by heat” but would be all right.
Firefighters from Pike Twp. received mutual aid help from New Carlisle, Tipp City, Huber Heights and both German and Bethel townships, the fire chief said. Firefighters were still on the scene at 5:10 p.m.
The cause of the fire is unclear, and an investigator was on the scene Wednesday evening.