Cambridgeshire Fire and Rescue Service attended the incident. (Image: Archant)
The fire was discovered at about 5.40pm on Thursday night (January 18) and two fire crews from St Neots attended the incident.
They used hoses to put out a fire in the building which they said had been started deliberately.
Firefighters are urging anyone with information about the fire to contact police at www.cambs.police.uk or to contact Crimestoppers, anonymously, on 0800 555111.
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