A fire just north of Maplewood Road on Tenth Line in the Township of East Zorra-Tavistock on Wednesday caused significant damage.
Oxford OPP and Oxford County Fire and Emergency Services were on scene.
The fire was reported at 11:30 a.m. and led to the complete destruction of one barn, and a small shed.
A second barn sustained external damage, but was salvaged.
East Zorra-Tavistock Fire Chief Scott Alexander said two individuals were treated on-site for exhaustion and heat-related issues but did not require hospitalization.
The cause of the fire remains undetermined.