A giant blaze has broken out in the Auckland suburb of Takanini.

Thick black smoke can be seen billowing from an industrial building in Inlet Road.

Half of the large building was in flames and the fire was spreading, a witness said.

The scene of the blaze. Photo / Supplied

He could see two fire trucks at the scene and plumes of smoke in the area.

"Half of Papakura is covered in smoke," he said.

Thick smoke can be seen for miles. Photo / Supplied

A Papakura resident says she can see the smoke from her house.

"There's black smoke billowing up into the air, heading back towards Papakura.

"I can hear a popping noise and lots of sirens".

The smoke can be seen from Bottletop Bay. Photo / Judy Wood

A St John Ambulance spokeswoman confirmed they were at the fire in Inlet Road assisting Fire and Emergency New Zealand (FENZ).

She said they were notified by FENZ at 4.31pm and have sent one manager and an ambulance to the blaze.

"At this stage we have no reports of injuries," she said.