At 2.50pm on Wednesday (29) one crew from Stanground and one crew from Dogsthorpe were called to a fire on the A47 near Wansford.
Firefighters arrived to find a car on fire on the westbound carriageway. Wearing breathing apparatus they extinguished the fire using hose reels and returned to their stations by 4.05pm.
The cause of the fire was deliberate. Anyone with information should contact police on 101 or Crimestoppers on 0800 555111.