Rotorua firefighters are treating a blaze at the Linton Park Reserve as suspicious after they spent more than three hours putting out a fire in a large stack of wood on Saturday.
Rotorua Fire Brigade senior station officer Richard Anastasi said the fire was called in at about 4.40pm with six units - three from Rotorua, two from Ngongotaha and one from Lake Okareka - attending the scene.
Mr Anastasi said the cause of the fire was unknown and was being treated as suspicious.
He said there were a number of large piles of wood in the reserve after the Rotorua Lakes Council cut down trees and scrub there recently.
"It's up to the police to investigate if they want to, but since we don't know the cause we are treating it as suspicious. It could have been some kids playing with matches, it could have been deliberately lit, or it could have been totally accidental."