THREE people were killed and several injured after an unusual storm, described by witnesses as a "mini tornado", hit New Zealand's largest city of Auckland today, toppling trees and ripping debris from a construction site.
The tornado, driven by a powerful storm cell, tore concrete slabs from a building site and dropped them onto a truck, killing two people inside, a fire services spokesman said.
At least seven people injured in the storm were sent to hospital.
"I saw it coming across the river, the air went very electric and the sky went black. And then the wind started to whistle. This was like a juggernaut roaring through here," witness Suzanne McFadden said.
Hobsonville is the site of a new town centre near Auckland, which is home to 1.3 million people, roughly a third of the New Zealand population.
Military personnel were going from door to door in the area to check if more people were trapped and authorities warned of more severe weather to come later today.
New Zealand has been hit by several natural disasters in recent years, including a magnitude 6.3 earthquake that struck the southern city of Christchurch in 2011, killing 185 people. Another tornado in Auckland last May killed one person.
The Christchurch quake caused damage of €10bn, making it the country's costliest natural disaster.