The fire service has suppressed a large blaze at a chemical factory fire in South Auckland this morning.
The fire is located at Koppers Performance Chemicals on Mayo Rd in Wiri, a chemical storage facility.
Fire communications spokesperson Jaron Phillips told 1 NEWS that hot sports continue to be monitored.
At its peak, 19 trucks attended the blaze.
Crews waited for daylight before ventilating the building.
The fire was in the north-east corner of a three-storey building.
Roads have been closed off in the area.