Watch: Electrical storm's lightning and 'golf ball' hailstones

An electrical storm in Christchurch cut power and damaged buildings. Residents reported hailstones the size of golf balls and spectacular lightning strikes during the storm that started just before 6.30pm Tuesday evening. The Fire Service received about 20 callouts, most false alarms triggered by the weather or about damage to roofs and conservatories caused by hail, said a spokesman.