A number of farming machines as well as large bales were damaged following a fire at a hayshed on the Burren Road outside Dromara, last Wednesday morning.
Appliances from Ballynahinch, Dromore and a water tanker from Warrenpoint attended the scene, around 3.30am.
A main jet and two hosereel jets were used to deal with the blaze.
The contents of the shed, were then removed to a field to be extinguished.
The incident was made more hazardous due to the instability of the building, said a NIFRS spokesperson.