French far-right leader Marine Le Pen is standing trial over comments she made five years ago comparing Muslim street prayers to a foreign occupation.

Le Pen, whose National Front party is known for its anti-immigration and anti-Islam views, is to be judged Tuesday on charges of inciting racial hatred in Lyon, where she'll face four anti-racism and human rights organizations.

Her popularity on the rise in France, Le Pen faces up to a year in prison and a fine of 45,000 euros ($51,000). Despite the potential jail term, political experts say she could emerge from the trial even stronger among many National Front voters.

Le Pen has also been trying in recent years to raise her standing among those on the left, with opposition to Europe's economic policy.