Ex-French Economy Minister Arnaud Montebourg

Outspoken French Industry Minister Arnaud Montebourg accused European Commission President Jose Manuel Barroso on Sunday of fueling far-right groups across Europe as France's National Front made gains in a parliament by-election.

Montebourg said the EU was alienating ordinary Europeans by ignoring their concerns. The comments mark an escalation in tensions between Paris and Brussels, already at loggerheads over France's refusal to allow subsidies to its cinema and other cultural sectors to be reviewed in future EU-U.S. trade talks.