Crews from Huntingdon and Ramsey joined colleagues from Stanground, March and Whittlesey at Broadway, in Yaxley, at about 4.30pm.A spokesman for Cambridgeshire Fire and Rescue Service said: Firefighters arrived to find a well-developed fire involving a large amount of wooden pallets. They extinguished the fire using hose reels and jets, before returning to their stations by midnight. A water carrier and an incident command unit were also called to attend the blaze. An investigation revealed the cause of the fire to be deliberate. Anyone with information should contact Cambridgeshire police on 101 or Crimestoppers, anonymously, on 0800 555111.