Low-lying fog is affecting air travel around the country, with flights delayed and cancelled at several airports, including Dunedin and Invercargill.
A Southern district police spokeswoman said the fog had not caused any traffic issues, and no crashes had been reported throughout the district since last night.
However, she advised motorists to maintain safe following distances and drive with care until the fog clears.
Arrivals and departures information for Dunedin Airport and Invercargill Airport show several flights have been delayed until later this morning, while a handful have been cancelled.