US President Donald Trump has congratulated Ukrainian presidential candidate Vladimir Zelensky on his victory in the Ukrainian presidential election, US Special Representative for Ukraine Negotiations Kurt Volker confirmed on Twitter.

Axar.az reports citing TASS.

"President Trump called to congratulate Volodymyr Zelenskyy [Vladimir Zelensky - TASS] for his electoral victory and the Ukrainian people for a peaceful & democratic election. We will continue to support Ukraine’s efforts to restore its territorial integrity and counter Russian aggression," he wrote.

Volker also expressed his gratitude to incumbent Ukrainian President Pyotr Poroshenko. "We commend [Pyotr Poroshenko] for his courage in leading Ukraine through a tremendously difficult time and for his commitment to the democratic institutions of the US and for accepting the will of the Ukrainian people," he wrote.

Vladimir Zelensky is leading in the runoff stage of the Ukrainian presidential election with 73.01% of the vote after Ukraine’s Central Election Commission has counted 50% of electoral ballots, the commission informed on Monday. Poroshenko has received 24.65% of the vote.

According to the commission, Zelensky has taken the lead in all regions of Ukraine, except the Lvov Region. The voter turnout in the runoff stage of the election reached 62.07%.