Russia reiterated its previous conditions for reaching a peace agreement with Ukraine in a private message sent to the U.S. late last week, known as an "unofficial document," Reuters reports, citing sources.

According to a U.S. official, the message repeats Russia's demand to take full control of Donbas in Ukraine, effectively rejecting former President Trump's idea that the frontlines should be frozen in their current positions.

The official said Russia also reaffirmed in the unofficial document its stance that NATO troops should not be deployed in Ukraine as part of a peace agreement.

News of the unofficial document emerged amid growing doubts about a potential summit between Trump and Russian President Vladimir Putin in Budapest. The White House stated that such a meeting is not planned in the “near future.”

On Thursday, Trump held a phone call with Putin and subsequently said the Budapest meeting would likely take place within the next two weeks.

Media reports indicate that during a private meeting with Ukrainian President Volodymyr Zelensky on Friday, U.S. officials presented him with the Kremlin’s proposed plan: Ukraine would give up Donbas in exchange for small parts of the Zaporizhzhia and Kherson regions.

Zelensky rejected the proposal, after which Trump publicly stated that the existing frontlines should be frozen.