French far-right presidential candidate Marine Le Pen has vowed to request all people with dual citizenship in France and other countries to choose only one nationality, except for Europeans and Russians.

She said this doesn't mean foreigners would need to leave the country, explaining they can stay "as long as they respect French laws and values".

Le Pen said she considers Russia to be part of the "Europe of nations." In response to a specific question from a reporter on France 2 television Thursday night she said the measure would involve Israel, since it's not a European country.

In early polls, Le Pen appears in a good position to be among the two top contenders and advance to the second round of the April-May presidential election. (ABC)