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.

Top Trump administration officials are meeting Ukrainian negotiators in Florida this weekend, pushing to broker an end to Russia's war in Ukraine and setting the stage for key talks planned this week in Moscow with Russian leader Vladimir Putin.

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.

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, which owns the terminal.

"We need to sit down and discuss this seriously," Putin told reporters at the end of a three-day visit to Kyrgyzstan. He described U.S. President Donald Trump's 28-point peace plan as "a set of issues put forward for discussion" rather than a draft agreement.

Ukraine’s chief negotiator, in an exclusive interview, says conceding sovereign territory is off-limits in peace talks.

The majority of Americans disapprove of Trump's handling of the Russia-Ukraine conflict, as the U.S. tries to broker a deal between the two countries.

As Washington ramps up its negotiations with Ukraine and Russia and U.S. President Donald Trump expresses optimism that a peace deal could be close, there are still some very critical and contentious issues on which Kyiv and Moscow are in deep disagreement.