Firefighters on aerial appliances are hosing down the remains of a large industrial building now gutted and left as a shell, in the south Auckland suburb of Wiri.
Earlier on Tuesday, large plumes of dark grey smoke could be seen from several kilometres away.
Police closed Roscommon Road and were directing traffic back on to the motorway.
They are encouraging motorists to use alternative routes.
No one from Fire and Emergency was available to comment but RNZ understands crews from seven stations attended.
Fire trucks at the site of a blaze in Wiri that closed a main road in the Auckland suburb.
Photo: RNZ / Kim Baker Wilson
Fire crews dampen down the site of a blaze at Wiri, Auckland.
Photo: RNZ / Kim Baker Wilson
Firefighters at the scene of a blaze at an industrial site in Wiri, Auckland.
Photo: RNZ / Kim Baker Wilson
The fire sent plumes of smoke that could be seen from several kilometres away.
Photo: Supplied / Ben Chissell
Photo: Shaun McLaughlin
Emergency services at the site.
Photo: RNZ / Kim Baker Wilson
More to come…
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