The first mobile home caught fire in the 1700 block of Mine Road just after 1:30p.m., say dispatch.
By the time firefighters arrived, three mobile homes were on fire and the flames were spreading to an adjacent wooded area.
The fire was under control by 2:15 p.m.
No injuries were reported.
All three homes were vacant and uninhabited.
Mine Road was closed during the fire.
An official ruling has not been made on whether or not these were an act of arson but a fire marshal is investigating the cause.
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