On Tuesday (30) at 11.07am, one crew from Ely and two crews from Newmarket were called to a house fire on The Causeway, Soham.
On arrival, firefighters found curtains alight inside the house. Wearing breathing apparatus they extinguished the fire using one hose reel, before using a positive pressure ventilation fan to clear the smoke.
Both crews returned to their stations by 1.15pm.
The cause of the fire was accidental.
A fire service spokesperson said: “The fire was started by incense sticks that had been left unattended.
“"Like candles, incense sticks can be dangerous if left unattended so always they are placed in a draught-free area, well away from curtains, furniture or other flammable surfaces. Make sure you leave plenty of space around the area and ensure that the surface is flat and stable.”