A fire that gutted a Four Square supermarket north of
Auckland overnight is being investigated to see if it was
The scene has been guarded since up to 70 firefighters
battled the blaze at Warkworth last night.
Fire service shift manager Steve Smith said 15 trucks were
flanked by support units in containing the fire, which was
reported about 7.40pm.
"We've had a scene guard overnight so they're obviously
looking for something in particular," Mr Smith said.
The fire was extinguished shortly before midnight.
Fire investigators will be on scene this morning to look for
what caused the blaze.