A blaze at a Takanini scrap metal factory is now undercontrol.
Northern fire service communications shift manager Carren Larking said five trucks remained at the scene at 11.25pm on Wednesday.
"It's starting to die down and we are starting to release appliances."
Eight trucks were at the scene at Metalman, and they were notified of it at 8.30pm, a Fire Service spokeswoman told the Herald earlier.
The cause of the fire was unclear but an investigator hadn't been called in, Larking said.
Nicola Woods lives close to the Metalman scrap metal plant near the Takanini off-ramp on the Southern Motorway, and said there is "smoke everywhere".
"It looks like about four or five metres, the flames are pretty big. It's been going for a good 15 minutes to half an hour, there's been at least four to six fire engines come off the motorway."
Woods said she could see "massive flames, the whole metal pile is on fire".
Sarah Gainly lives about 500m from the scrap metal yard, and told the Herald her street is "filled with smoke".