Anderson confirmed to Newshub the fire has now been extinguished and a fire investigator will be arriving at the scene later on Sunday.
One truck currently remains at the scene to monitor hotspots, Anderson said.
During the blaze, firefighters wore breathing apparatus and nearby residents were told to keep doors and windows closed because of the smoke.
Anderson confirmed there were no injuries or damage to property to report.
Anderson told Newshub he was aware train services on the Southern Line were briefly suspended but have now resumed and referred all questions on this to Auckland Transport and KiwiRail.
Police told Newshub they were alerted to the blaze but referred all questions to FENZ.
Newshub has contacted KiwiRail for more information.