Firefighters are tackling a blaze in a grain dryer at a north-east airfield.
The incident occurred at Crimond Airfield at about 11.45am.
Fire crews are still on the scene.
No one is thought to have been injured.
A Scottish Fire and Rescue Service spokeswoman said: “We received the call at 11.52am about a fire in a grain dryer at Crimond Airfield.
“We sent four appliances to the scene.
“Crews are using two breathing apparatus and one hose reel jet.
“Grain is currently being removed from the dryer.”