On Monday (22) at 6.23pm, one crew from Whittlesey was called to a rubbish fire at Flag Fen, Peterborough.
Firefighters arrived to find a large pile of rubbish well alight.
Using a hose reel, firefighters extinguished the fire, before returning to their station by 7.30pm.
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.