A fire that ripped through a Rotorua timber mill has not been identified as suspicious but a fire investigator is looking into the blaze today.
This morning, a FENZ spokeswoman said a fire investigator would be returning today to look further into the cause.
It was not being treated as suspicious at this stage and no one was injured in the blaze, she said.
Nine fire crews from Rotorua, Kawerau, Ngongotahā, and Mamaku worked on battling the blaze at the former Lumbercube Mill site until close to midnight last night.
A Fire and Emergency New Zealand spokesman said yesterday they were first called to the blaze at 5.45pm after "multiple 111 calls came through."