LOUDON, TN — Crews from across Loudon County have made progress extinguishing flames that engulfed the county courthouse, causing devastating damage to the structure. 

The nearly 150-year-old historic courthouse has been deemed a 'significant if not total loss,' according to county mayor Buddy Bradshaw.

When the call initially came in, crews could be seen battling flames coming from the roof at the courthouse at 601 Grove Street around 6 p.m.

Crews thought the fire was nearly under control during the evening, but as they worked to put out hot spots, the flames made a resurgence and began engulfing the upper floor.