A flaming pack of 20 national newspapers had to be put out by firefighters after it was spotted under a ramp at Buckingham Skate Park.
A crew from Buckingham used buckets of water to stop the fire from spreading at the London Road park shortly after 10.30am.
Crew commander Kieron Thomas, from Buckingham Fire Station, said: “Someone had taken a stack of Sunday newspapers and set them on fire.
“It was controlled but obviously a fire where small children run around is never good.”
For more information about Bucks fire service, visit www.bucksfire.gov.uk