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Fire crews were called after a garden bonfire spread to nearby sheds and fencing.
One person was treated by the ambulance service for smoke inhalation after the blaze in Hale Lane, Sevenoaks, just before 1pm yesterday.
Two fire engines were sent to the scene and when crews arrived they discovered a number of sheds and fence panels alight.
Firefighters used hose reel jets to extinguish the flames and it's believed the blaze started from a nearby bonfire.
The fire service now wants to remind people to take care when lighting bonfires.
A spokesman said: "Following the incident, crews are reminding everyone who chooses to have a bonfire to always: Avoid using flammable liquids to start a bonfire, build your bonfire well away from, and clear of, buildings, garden sheds, fences, hedges and overhanging branches, keep it to a manageable size and evenly built, so that it collapses inwards as it burns."