A woman escaped serious injuries after a car she was travelling in went out of control and over a bank in the Dunedin suburb of Dalmore before landing on its roof.
The white saloon crashed in Fea St, about 9.15am.
It is understood the woman had only minor injuries.
A police spokeswoman said police contacted the Dunedin City Council to have warning signs placed in the area because of the slippery conditions.
Speed and alcohol were not factors in the accident, and initial indications were that the accident was weather-related, she said.