Fire investigator to look into large blaze at Karaka produce shed

Firefighters have extinguished a large blaze south of Auckland overnight.

NZ Fire and Emergency crews were called to a produce packing and chilling shed on Lewis Rd, in Karaka, just after midnight.

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They arrived to find the two-storey building well-involved, a spokesman said.

Six crews worked to bring the fire under control.

It is not known whether anyone was inside the property at the time.

A fire investigator is due to visit the scene this morning.