Police have issued a warning after Dunedin drivers came to grief on wet roads at the weekend.
Southern district command centre deployment co-ordinator Senior Sergeant Brian Benn, of Dunedin, said several cars slipped on the wet roads.
And police warned that, with autumn well under way and the ensuing approach of winter, driving conditions - including the available light, visibility and road surfaces - could change rapidly.
Such conditions could change ''from nice to pretty average'' at any stage throughout the day.
Drivers needed to be ''very wary of the road conditions'' and also to be alert to ''any changes'', police said.
As seasonal driving conditions continued to become more challenging, even ''momentary inattention'' could have ''dire consequences'', police said.
Snr Sgt Benn said motorists needed to drive to the conditions.
In addition to the accidents on Saturday pictured above, a Toyota collided with the back right-hand side of a bus that was stopped in South Rd letting off passengers.
A St John spokesman said a man in the Toyota was transported to Dunedin Hospital with minor injuries.
No-one was hurt when a driver, in his late 30s, was affected by a ''medical issue'' and his car collided with two parked cars in Thoreau St, Concord, in Dunedin, at 11.12am yesterday, police said.
He later received medical support, emergency service staff said.