At 7.03am on Sunday (29) two crews from St Neots were called to a fire near the B645.
Firefighters arrived to find a well-developed fire involving two cars in a woodland area near Stonely. Wearing breathing apparatus they extinguished the fire using a hose reel and returned to their station by 9.15am.
The cause of the fire is believed to be deliberate. Anyone with information should contact police by visiting www.cambs.police.uk to submit an online report or call Crimestoppers on 0800 555111.