NATO said Tuesday that Secretary General Mark Rutte will meet with U.S. President Donald Trump in Washington on Wednesday, in a visit announced with little advance notice.

No public press events were planned, NATO spokeswoman Allison Hart said late Tuesday.

The meeting comes amid Trump's ongoing efforts to end the war in Ukraine.

He spoke last week with Russian President Vladimir Putin by phone and indicated plans for a potential meeting with the Kremlin leader in Budapest.

But U.S. media, citing Trump administration sources, reported on Tuesday that the Budapest meeting has either been put on hold or delayed.