Arsonists set fire to a shed in a Fenland village on Wednesday February 21.
One crew from March was called to the blaze on Lily Avenue in Wimblington at 3.27pm.
Firefighters used a hose reel to extinguish the fire and returned to their station by 4.20pm.
The cause of the fire is believed to be deliberate.
Anyone with information should contact police by visiting www.cambs.police.uk to submit an online report or call Crimestoppers on 0800 555111.
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