U.S. President Donald Trump has congratulated Volodymyr Zelenskiy on his victory in Ukraine's presidential election.

The White House said in a statement that Trump spoke with Zelenskiy after his victory on Sunday. He called the election an important moment in Ukraine's history and noted the peaceful and democratic manner of the electoral process.

The statement said Trump "underscored the unwavering support of the United States for Ukraine's sovereignty and territorial integrity — within its internationally recognized borders.

He also expressed his commitment to work with Zelenskiy "to implement reforms that strengthen democracy, increase prosperity, and root out corruption."