Five appliances and crews attended, along with two officers.
The appliances and crews attending were from:
- Bicester
- Thame
- Wheatley
- West Ashland
- Aylesbury
Smoke was present in the area when they arrived.
Multiple bales of hay were alight and generating smoke which was affecting the A41.
The fire was generating multiple calls to Thames Valley Fire Control Room.
The firefighters provided advice.