Cambridgeshire Fire and Rescue Service issued a warning last week, after a "significant increase in arson attacks" were recorded in April. Figures in this weeks Hunts Post (Wednesday May 8) revealed that there were 19 deliberate fires in Huntingdonshire in April, with five being at the former RAF Upwood site. Last night, fire crews were called to another fire at the former site yesterday evening at 5pm, where they found a heap of rubbish alight. One crew from Huntingdon and two crews from Ramsey were called to a fire in the open at RAF Upwood, Huntingdonshire. The crews arrived to find a heap of rubbish well alight at a scrapyard between derelict buildings and the hangars. Using a water carrier and two hose reels, they managed to extinguish the fire, before returning to the station by 8.35pm. 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.