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
-
Storm overflow prevention work set for Plymouth
But it will take five years
-
Help needed to find Exminster pensioner
Concerns for Charles Fulton, 74
-
City lose at home again
Kyle Wooton brace gives Stockport win over sorry Exeter
-
Calls for inclusion on Plymouth lord mayor role
It traditionally alternates between Conservative and Labour
-
Upgrades to Plymouth storm overflows to take place
Hoe bathing waters are priority to stop sewage discharges
