Violence marred demonstrations by wine growers in the South of France yesterday as protests against falling wine prices in the country continued.

Some 10,000 winemakers took to the streets of Narbonne yesterday and there were sporadic acts of violence with windows and car windscreens smashed. A small group of around 30 protestors also clashed with riot police as they tried to enter the town centre.

Earlier this month a demonstration by around 8,000 Languedoc-Roussillon winegrowers in the centre of Montpellier degenerated into a near-riot. There have also been acts of terrorism. In April, just-drinks reported that a wave of violent action from winegrowers from the Languedoc-Roussillon region were behind a series of explosions in Montpellier and Carcassonne. The explosions were caused by sticks of dynamite being thrown at the entrances to state buildings.

The winegrowers from France's southern regions are blaming growers from Bordeaux in particular for their plight.

Jean Roger, 58, president of the wine growers of the Pyrénées Orientales département, was quoted today saying: "While we were suffering and destroying our vines and reducing production and improving quality, the Bordeaux growers were planting ... thousands of hectares of new vines.

"Now they have run into trouble and they are bleating but it is we, the Roussillon and Languedoc growers, who are suffering most. Just when we should be reaping the benefits of the sacrifices we have made, our prices have collapsed."