Ukraine’s Security Service (SBU) is reportedly investigating allegations that presidential front-runner Volodymyr Zelenskiy’s campaign could be financed by Kremlin-linked figures.

Polls have forecast a heavy defeat for President Petro Poroshenko in the second round of Ukraine’s presidential elections on Sunday. Zelenskiy, a comedian and actor with no political experience, won twice as many votes as Poroshenko in the first round on March 31.

n>