In Chile, the election for a new president will go into a second round on 19 December after none of the seven candidates managed to secure the necessary 50% needed to win outright.
Far-right candidate José Antonio Kast will face left-wing former student leader Gabriel Boric in the run-off.
The election is one of the most polarised in recent decades and comes after mass anti-government protests.
Mr Kast described it as a choice between "liberty and communism".
Mr Boric, meanwhile, said he was fighting "for democracy, for inclusion, for justice".
With 97% of the votes counted, Mr Kast was in the lead with 27.94%, followed by Mr Boric with 25.75%.
Economist Franco Parisi, who lives in the United States and did not travel to Chile to campaign, won a surprise third place but only the candidates placed first and second will dispute the second round.
Mr Kast and Mr Boric will now try to woo those who voted for Mr Parisi and the other unsuccessful presidential candidates.