UPDATED 12.55pm: Fire-fighters who entered a burning house in the Auckland suburb of Manurewa just before midday have established there was no-one inside.

Fire service shift manager Jarron Philips says there was heavy smoke inside the building.

"Neighbours reported that there may have been people inside the home. Firefighters conducted a search, but no one has been found and since then everyone's been accounted for."

Meanwhile the fire at an office building in Whenuapai has been extinguished.

The roof of the building o nFred Taylor Drive was ablaze.