One appliance and crew from Buckingham, four from Aylesbury, three from West Ashland, two from Broughton and four officers attended.
Firefighters used two main jets, one hose reel, two sets of breathing apparatus, a turntable ladder, a water tanker, a thermal imaging camera and a fog spike – a tool used to punch holes into a structure and deliver water into the inside. Firefighters were unable to get inside the building.
Relief crews from Brill and Newport Pagnell arrived at about 2am. An investigation into the cause of the fire has started.