Crews from Tiverton, Cullompton and South Molton were called out to the property in Bickleigh just before 3am.
Overhead power cables nearby have been disconnected.
Crews on scene used compressed air foam covering jet on the barn.
Mid Devon barn fire destroys 300 bales of hay.
More from Local News
-
Man reattaches flags moments after removal
He scaled his ladder as council contractors used a cherry picker
-
Rocket builder careers in Cornwall to soar
Government boost to fill demand
-
'Twas the weather warning before Christmas
More heavy rain hits Devon
-
Police watchdog investigates after fatal Plymouth crash
Young biker dies
-
Torbay memorial bench prices top London's
MPs call for a review
