Firefighters tackled a blaze at a campsite in Maple Cross.
One fire crew from Rickmansworth Fire Station was called to a campsite in Maple Lodge Close at 5am on Sunday morning and extinguished a timber-framed container which was on fire.
Fire crews remained on scene for almost an hour and a half.
Initial reports to the fire service suggested there was a fire behind the bathroom on the campsite.
The fire has been listed as accidental.
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