Dozens of residents are being warned to prepare for a night away from home after a gas explosion in Christchurch seriously injured six people, destroyed a house and damaged more than 20 others.
Nearby houses were evacuated after the explosion in Marble Court, Northwood, caused roof tiles and insulation to rain down across the neighbourhood about 10.20am today.
Fire and Emergency New Zealand said the explosion came from the area's reticulated gas supply and caused multiple injuries.
Five properties have been severely affected by fire and one has been destroyed. A further 17 properties have been impacted by debris.