Fireworks are thought to have started a large blaze in Christchurch last night.
About 35 firefighters were called to the fire at the Sugarloaf reserve in the Port Hills about 9pm yesterday and managed to contain the blaze by midnight.
At its height, the fire covered several thousand square metres.
Fire service shift manager Brent Dunn said while the fire was close to the repeater station at the top of Sugar Loaf Hill, it never posed a threat to it.
He said used fireworks were discovered at the scene of the blaze.
"Whilst it is getting into winter, it is still quite dry out there and, especially this last week, it's been pretty good weather. There were warm winds yesterday too, so people just need to keep that in mind."
Mr Dunn said a single fire crew remained at the scene, dampening down hot spots.
