It is unlikely the same people are responsible for three large suspicious fires that have happened in Rotorua during recent months.
Since May, there have been fires at Linton Park, Sulphur Point and Rotorua Girls High School. All are considered suspicious but no one has yet been held accountable.
Central Lakes area commander Graham Fuller said the fire at Linton Park on Thursday last week is still being treated as suspicious and police were still investigating.
Last month there was a large blaze at Sulphur Point which Mr Fuller said was still being investigated and in May this year two Rotorua Girls High School maths classrooms and the rest of H Block was damaged. Mr Fuller said he did not think the fires were related and at this stage they still did not know who started them.