The Ukrainian leader has claimed Kiev is ready for an immediate ceasefire with Moscow

Words alone would not be enough to restore trust in Kiev, Elon Musk has said in response to Ukrainian leader Vladimir Zelensky's announcement that he was ready to sign a deal with the US on rare-earth minerals and agree to a ceasefire with Moscow.

"Actions, not words, are what matter. Let's see what actions take place," the billionaire and top adviser to US President Donald Trump wrote on X on Tuesday.

Zelensky earlier expressed his regret that last Friday's meeting in Washington "did not go the way it was supposed to."

The US and Ukraine were supposed to sign a rare-earths deal during Zelensky's visit to the White House. The signing was abruptly canceled following a heated argument in the Oval Office, during which Trump and Vice President J.D. Vance accused Zelensky of not being grateful for American aid to Kiev. Trump later claimed that Zelensky was acting disrespectfully and did not want to achieve peace with Russia.

On Tuesday, Zelensky said that Kiev was ready to sign the minerals agreement at "any time and in any convenient format." He stated that Ukraine was also ready for a prisoner exchange and a truce with a "ban on missiles, long-ranged drones, bombs on energy, and other civilian infrastructure." He thanked Trump, US Congress, and the American people but stopped short of formally apologizing for the Friday incident.

Following a shouting match in the White House, Trump told reporters that Zelensky would need to be ready for a peace with Russia if he wanted to be welcomed back.

Fox News cited a senior US official on Monday as saying that Zelensky should make a public apology if he wants to sign the minerals deal. Later reports said, however, that Trump was planning to announce the agreement during his address to Congress on Tuesday evening.

Moscow welcomed Zelensky's overtures as a "positive" development. "It is good that he [Zelensky] is ready [to go back to the talks with the US]," Kremlin spokesman Dmitry Peskov told journalist Pavel Zarubin of the Rossiya-1 TV channel on Tuesday.

Moscow has insisted that peace should be made on its terms, including the transformation of Ukraine into a neutral country. The Kremlin also said that Kiev must renounce its claims on Crimea and four other regions that have voted to become part of Russia.