U.S. President Donald Trump's surprise announcement of an energy deal with Russia has effectively brought the U.S.-mediated peace talks between Russia and Ukraine to a halt.

U.S. special envoys had originally planned to visit Moscow to persuade Russia to participate in a peace agreement, but those plans have now been canceled, the U.S. daily The New York Times (NYT) reported on the 12th, local time.

According to sources familiar with the matter, U.S. special envoys Steve Witkoff and Jared Kushner recently expressed their intention to put their visit to Russia on hold until Ukrainian President Volodymyr Zelenskyy improves his relationship with President Trump.

Essentially, the peace-related talks with Russia have been put on hold by taking issue with Ukraine's attitude.

Initially, Witkoff and Kushner planned to visit Moscow later this month to present a new peace proposal and persuade Russian President Vladimir Putin to participate.

However, the atmosphere has cooled rapidly amid a backlash from Ukraine following the announcement of the U.S.-Russia energy deal on the 9th.

On social media, President Zelenskyy condemned the deal as an "investment in war" that paves the way for a prolonged conflict and a "birthday present for Putin," claiming that the possibility of a U.S.-Russia energy deal had never been mentioned during previous peace negotiations.

In response, President Trump said, "Zelenskyy could have ended this war many times, but chose not to," adding, "I think it's time for Ukraine to have a new president."

The atmosphere at a peace-related meeting between the U.S. and Ukraine held in Miami, Florida, on the same day was also reportedly tense.

According to sources, Witkoff and Kushner notified Ukraine of the U.S.-Russia energy deal on the day of the meeting and demanded that Ukraine halt its attacks on Russian oil refineries.

When Ukraine asked what it would receive in return for halting the attacks, the U.S. side reportedly retorted, "We are already doing a lot for Ukraine," and stated that no additional compensation was necessary for stopping attacks on oil refineries.

Subsequently, President Trump claimed on Truth Social on the 11th that an "energy truce has been reached between Russia and Ukraine," but President Zelenskyy countered in a U.S. media interview that it was "the first time I'm hearing about this."

There have also been media reports warning that the U.S. has threatened to cut off war-related intelligence sharing with Ukraine and even raised the possibility of halting weapons supplies.

Regarding this, a U.S. official told the NYT, "President Trump is very angry with Ukraine, making it difficult to predict what actions he might take."