Fire damage has been found at two popular Chesterfield parks, including the recently refurbished Eastwood Park in Hasland.
Police have launched an appeal for information after damage, believed to have been caused by fire, was found in Queens Park and Eastwood Park.
The incidents are believed to have happened sometime overnight between Monday, September 1 and Tuesday, September 2.
Park rangers reported that a wooden picnic table, near to the water fountain at Eastwood Park in Hasland, and the side screens on the cricket pitch at Queen’s Park, Chesterfield, had been damaged by fire.
Officers from the local Safer Neighbourhood Policing Team are now making enquiries.
PCSO Zoe Blount said: “Fire can easily get out of hand, and by setting fire to anything you are potentially putting yourself and others at risk of harm.
“It is also costly to replace and repair equipment and is unpleasant for other people wanting to enjoy the facilities.
“If anyone has any information, or noticed anything suspicious in the areas at the time then please contact us.”
Anyone with information should contact Derbyshire police on 101, or call Crimestoppers anonymously on 0800 555 111.