FIREFIGHTERS have battled a hay barn blaze at Glengarry.
At least six firefighting vehicles are at the scene in Frankford Road.
The fire was reported at 12.46pm.
The barn, which contained hay bales, was fully alight when firefighters arrived.
The fire spread to grass and light scrub around the barn.
A Tasmania Fire Service spokesman said a house was under threat, but was now safe.
An excavator is being used to pull apart hay bales to allow them to cool down and the fire to be extinguished.
Police and a fire investigator are examining the scene.