Arsonists set fire to 40 tonnes of hay in Farcet last night, Wednesday April 20.
A crew from Stanground was called to a the balze in Conquest Drove, Farcet at 8.39pm..
Approximately 40 tonnes of straw in a stack measuring 10m by 10m was well alight.
Firefighters ensured the fire would not spread using tools and water. It has been left to burn out and regular inspections are being made by fire crews today, Thursday.
The cause of the fire was deliberate. Anyone with information should contact police on 101 or Crimestoppers anonymously on 0800 555111.