Thieves in France have broken into a vineyard and stolen an entire crop of Cabernet Sauvignon grapes, say police.

They struck in Villeneuve-les-Beziers on Sunday night, taking advantage of a full moon and using a harvesting machine to seize 30 tonnes of the crop.

Farmer Roland Cavaille said similar crimes had taken place before in the Languedoc-Roussillon, one of France's best-known wine growing regions.

He said the theft amounted to a year's work and about 15,000 euro (£12,900).