The call marked the sixth publicly acknowledged conversation between the two leaders since Trump returned to office earlier this year.

U.S. President Donald Trump said on Thursday that a phone call earlier in the day with Vladimir Putin resulted in no progress at all on efforts to end the war in Ukraine, while a Kremlin aide said the Russian president reiterated that Moscow would keep pushing to solve the conflict's "root causes.

US President Donald Trump admitted that in his conversation with Russian President Vladimir Putin, he did not make progress on the issue of ending the war in Ukraine, according to his statement while speaking to journalists at Andrews Air Force Base in Washington.