The blaze happened in Tongwell last night.
Eight crews from Broughton, Olney, West Ashland (two crews), Buckingham, Towcester and Kempston, along with a turntable ladder from West Ashland and an incident command unit from Aylesbury, along with four officers attended the commercial fire involving machinery, at Michigan Driver in Tongwell.
At the height of the incident firefighters used six sets of breathing apparatus, three main jets, one hose reel jet, thermal imaging cameras and positive pressure ventilation equipment to extinguish the fire.
Firefighters remained on scene for several hours extinguishing hotspots, cutting away building materials and carrying out thermal imaging checks for hot spots.
