At 5.57pm one crew from Wisbech was called to a fire in High Road, Guyhirn.
Fire in the open - Guyhirn - Fenland
On arrival, they found plastic drainage on fire. Using one hose reel they managed to extinguish the fire before returning to their station at 7.00pm.
The cause of the fire was deliberate. Anyone with information should contact police by visiting www.cambs.police.uk to submit an online report or call Crimestoppers on 0800 555111.