Ukrainian comedian Volodymyr Zelensky has won a run-off election to become the country’s next president by a landslide, exit polls suggest.
The polls give him more than 70% support. He dominated the first round of voting three weeks ago when 39 candidates were on the ticket.
Mr Zelensky challenged incumbent president Petro Poroshenko.
Mr Poroshenko has admitted defeat but told supporters gathered in Kiev that he will not leave politics.
“I will never let you down,” Mr Zelensky told supporters on Sunday.
He added: “While I am not formally president yet, as a citizen of Ukraine I can tell all post-Soviet countries: ‘Look at us! Everything is possible!’”
If polls are correct, he will be elected for a five-year term.
Ukraine’s president holds significant powers over the security, defence and foreign policy of the country.