KEY POINTS:
South Island drivers are being warned to take it easy on the roads today.
Black ice is making conditions treacherous.
MetService says Queenstown and Wanaka are experiencing temperatures as low as minus four degrees this morning.
Police in Southland say extreme care is needed particularly around Invercargill, Tuatapere, Ohai, Edendale, and Mataura through to Gore.
There has been a crash on the road near Waitane, near Mataura, involving serious injury.
It happened on State Highway 96 around eight o'clock last night.
In the central North Island, snow and ice have closed the Desert Road between Rangipo and Waiouru.
- NEWSTALK ZB
