Firefighters dealt with the blaze late last night.
Firefighters in Alfreton were called out to a case of suspected arson last night.
They extinguished a park bench blaze in Riddings park at 11.20pm.
23:20 - @AlfretonFireStn were called to a fire at Riddings Park, Riddings. On arrival, #Firefighters found a park bench to be well alight. Crews used 1 main jet to extinguish the fire. @DerbysPolice were informed as it is believed to have been started deliberately— Derbyshire Fire & Rescue Service (@DerbyshireFRS) June 6, 2019