Not long after the projections for the first round of the French presidential ballot were made public, clashes broke out in Paris.
It appeared the trouble was between mostly far-left protesters and police at the Place de la Bastille.
The protesters reacted with fury when news spread that Marine Le Pen had made it through to the run-off vote.
At least two people, including a teenage girl, are reported to have been injured.
Riot police fired tear gas to disperse the crowds.