Two crews from Dogsthorpe and Stanground were called to Crabtree just before 5am this morning where they were faced with a caravan fire. A shed, fencing and the external fascia of a house were also affected by the fire. Four firefighters used two hose reels and a jet to extinguish the fire.
The fire was out by 5.45am and crews left at 6.30am.
Police also attended the scene after spotting smoke and following it to the property in Crabtree at around 5am.
It is believed some nearby properties were also evacuated at the time.
A spokes person for the Cambridgeshire Fire and Rescue say one person was treated by ambulance crews for smoke inhalation and that a crew returned this morning to check the scene again. A fire investigation is now taking place to determine the cause.