Militant Languedoc winemaker group, the Comité Régional d'Action Viticole (CRAV), has claimed responsibility for an explosion outside a bottling plant run by a subsidiary of French cooperative group Val d'Orbieu. 

Little damage was done to the premises following the explosion, but the action follows attacks on the premises of retailers and merchants earlier this month.

"We have attacked a cooperative because they are buying in wine at prices even lower than those paid by merchants. By so doing, the sector is killing itself," one CRAV member told French TV, his face covered  by a mask.

"There will be further attacks unless the Government comes up a package of direct aid," he warned.  

Premises of the Val d'Orbieu group were already targeted by  CRAV in 2006 and 2008.