France’s far right National Front will sue Madonna after she screened footage of party leader Marine Le Pen with a swastika superimposed on her face at a concert in Paris on Saturday, a party official said.

French president Nicolas Sarkozy appealed directly to far-right voters with pledges to get tough on immigration and security, after a record showing in a first round election by the National Front made them potential kingmakers.

Socialist Francois Hollande and conservative President Nicolas Sarkozy are heading for a run-off in the race for France’s presidency, according to partial official results after a first round of voting today.