Firefighters remain at a building destroyed in a massive inferno on Albany's North Shore last night.
Up to 18 fire crews from around Auckland worked late into the night to contain the blaze at the site on Triton Drive, in Rosedale, after it ripped through a building about 8.30pm.
Northern fire communications shift manager Colin Underdown said they had one crew at the site just after 5.30am today.
Made up of four firefighters, they are on standby to monitor for any hot spots, he said.
Video footage of the blaze show huge flames ripping through the building.
Glass can be heard breaking in the background as firefighters work to get it out.
Witness Keith Nelson, director of operations of Vanguard Security, said last night that he could smell the fire before he saw smoke rolling up over the buildings as he patrolled the area.
"We ran around the corner - that's when the windows blew out on the first storey and flames came out," he said.