Arsonists set fire to a car which was found well alight next to standing crops in March last night.
Two crews from March were called to a fire on Badgeney End on Tuesday (August 20) at 10.04pm.
Firefighters used two hose reels to extinguish the fire before returning to their station by 11.20pm.
A police spokesman said: "Fire crews attended the scene and put out the blaze. Investigations into how it started are ongoing at this time."
"The cause of the fire was deliberate," said a Cambs Fire spokesman.
Anyone with information should contact police by visiting www.cambs.police.uk to submit an online report or call Crimestoppers on 0800 555111.
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