Top Trump administration officials are meeting Ukrainian negotiators in Florida on Sunday, pushing to broker an end to Russia’s war in

Ukrainian forces are defending their positions and hunting down sabotage groups in the northeastern city of Kupiansk despite Moscow's statements that its troops are fully in control of it, Ukraine's top commander said on Friday.

In Russia, a major oil terminal near the port of Novorossiysk stopped operations Saturday after a strike by unmanned boats damaged one of its three mooring points, according to a statement from the Caspian Pipeline Consortium, or CPC, which owns the terminal.

"None of us really know what Zelenskyy is like operating solo, because he never has," one expert told NBC News.

Belgian Prime Minister Bart De Wever said the European Union's plan to use frozen Russian state assets to fund Ukraine could endanger the chances for a potential peace deal to end the nearly four-year war.

Russian President Vladimir Putin appeared last week to be cautiously optimistic on the U.S. 28-point peace plan to end his invasion of Ukraine.

Russia launched its largest barrage of drones and missiles in a month across Ukraine, killing at least three people, Ukrainian President Volodymyr Zelensky said Saturday, as a Kyiv delegation heads to the United States for fresh peace talks.

Russian authorities must increase the number of people who identify as Russian and speak Russian in the parts of Ukraine incorporated into the country since Moscow's 2022 invasion, according to a document signed by President Vladimir Putin.