The Yarra Valley in Australia has been hit by what one wine grapegrower has described as "a one-in-30-years frost", according to local reports.

The Herald-Sun newspaper has reported that the region, located east of Melbourne in the state of Victoria, was hit by a snap frost the weekend before last.

Temperatures last Sunday fell to -3.6°C, the paper said, affecting over 4,000 hectares of grapevines, and causing expected losses of between A$60m (US$46m) and A$80m for growers alone.

"The frost on Sunday was the latest in a series of frosts," the paper cited Michael Matthews, chairman of the Victorian Wine Industry Association, as saying. "This could send some growers to the wall."

While the frost will lead to a shortage of wines from the region, wine prices are not expected to rise, the paper noted, as the country-wide glut will force growers and producers to absorb the costs.