The occupants were displaced. 
Frederick, MD. (RD) Fire fighters in Frederick County were dispatched to a house fire in the 200 block of Shannonbrook Lane in Frederick Sunday afternoon.
According to the Division of Fire and Rescue Services Facebook page, .fire fighter arriving on the scene just after 3:00 PM saw fire coming through the roof. The Rapid Intervention and Fire Task Force personnel were called to the scene.
The occupants were displaced by the fire.
The cause of the fire is under investigation by the Frederick County Fire Marshal.
By Bob Dacey 