1. France's Le Pen and Macron head to runoff

2. A crumpled ballot with the name of Francois Fillon, member of the Republicans political party and 2017 French presidential election candidate of the French centre-right, is seen on a table at a polling station after results in the first round of 2017

3. Tear gas floats in the air as demonstrators clash with French riot police after partial results in the first round of 2017 French presidential election, in Paris. REUTERS/Jean-Paul Pellisier

4. Supporters of Emmanuel Macron, head of the political movement En Marche !, or Onwards !, and candidate for the 2017 French presidential election, react at the Parc des Expositions hall in Paris after early results in the first round of 2017 French

5. Supporters of Marine Le Pen, French National Front (FN) political party leader and candidate for French 2017 presidential election, react after early results in the first round of 2017 French presidential election in Lyon. REUTERS/Emmanuel Foudrot

6. Marine Le Pen, French National Front (FN) political party leader and candidate for French 2017 presidential election, leaves a polling booth as she votes in the first round of 2017 French presidential election at a polling station in Henin-Beaumont.

7. Francois Fillon, member of the Republicans political party and 2017 French presidential election candidate of the French centre-right, leaves after delivering a speech at his campaign headquarters in Paris after early results in the first round of

8. Emmanuel Macron, head of the political movement En Marche !, or Onwards !, and candidate for the 2017 French presidential election, speaks to supporters after the first round of 2017 French presidential election in Paris. REUTERS/Philippe Wojazer

9. French university student and Jean-Luc Melenchon supporter Clara Lamotte reacts as she watches the televised French presidential elections at a viewing event held by the Universite de Montreal in Montreal, Quebec, Canada. REUTERS/Dario Ayala

10. A French citizen, who resides in Tunisia, arrives to cast her vote for French presidential election, at a polling station in Tunis, Tunisia. REUTERS/Zoubeir Souissi

11. A woman leaves a polling booth as she votes in the first round of 2017 French presidential election at a polling station in Vaulx-en-Velin near Lyon. REUTERS/Emmanuel Foudrot

12. Benoit Hamon, French Socialist party 2017 presidential candidate, delivers a speech at La Mutualite meeting hall in Paris after early results in the first round of 2017 French presidential election. REUTERS/Vincent Kessler

13. Marine Le Pen (L), French National Front (FN) political party leader and candidate for French 2017 presidential election, casts her ballot in the first round of 2017 French presidential election at a polling station in Henin-Beaumont.

14. Jean-Luc Melenchon, candidate of the French far-left Parti de Gauche and candidate for the French 2017 presidential election greets supporters in Paris. REUTERS/Stephane Mahe

15. Emmanuel Macron, head of the political movement En Marche !, or Onwards !, and candidate for the 2017 French presidential election, celebrates after partial results in the first round of 2017 French presidential election, at the Parc des Expositions

16. Media members work as Emmanuel Macron (C), head of the political movement En Marche !, or Onwards !, and candidate for the 2017 French presidential election, casts his ballot in the first round of 2017 French presidential election as his wife

17. French expats queue along the street outside the Lycee Francais Charles de Gaulle to cast their vote in a polling station inside the school, in the first round of the 2017 French presidential election, in London. REUTERS/Luke MacGregor

18. A volunteer carrying completed voting ballots evacuates the Consulate General of France after a New York Police identified a suspicious vehicle parked outside the entrance as voting for the French election occurred in Manhattan. REUTERS/Andrew Kelly

19. Emmanuel Macron, head of the political movement En Marche !, or Onwards !, and candidate for the 2017 French presidential election, gestures to supporters after the first round of 2017 French presidential election in Paris. REUTERS/Benoit Tessier

20. Emmanuel Macron, head of the political movement En Marche !, or Onwards !, and candidate for the 2017 French presidential election, celebrates on stage at the Parc des Expositions hall in Paris after partial results in the first round of 2017 French

21. Marine Le Pen, French National Front (FN) political party leader and candidate for French 2017 presidential election, celebrates after early results in the first round of 2017 French presidential election, in Henin-Beaumont. REUTERS/Charles Platiau