The fire broke out in an area of scrub and bush near Whakamaru, about 30km south of Tokoroa, yesterday afternoon.
Fire Service northern communications shift manager Jaron Phillips said a helicopter had to be called in yesterday because the fire was in a "pretty inaccessible" rural area.
"An aircraft actually had to guide fire appliances in late yesterday afternoon. You couldn't actually see it without the aid of an aircraft, so it took some time to locate," he said.
"It was attacked from the air, and we got tankers in there as well."
Rural firefighters had returned to the fire this morning.