Russian Foreign Minister Sergei Lavrov claimed Ukraine targeted one of President Vladimir Putin's residences and said Moscow will retaliate and review its stance in negotiations seeking an end to its ongoing full-scale invasion of Ukraine.

Ukrainian President Volodymyr Zelenskyy called the claim that Kyiv targeted the residence in the Novgorod region northwest of Moscow a "lie."

He asserted that Russia was seeking to undermine US-Ukraine talks on the war and "preparing the ground to carry out strikes -- most likely on the [Ukrainian] capital and on government buildings."

Asked about Moscow's allegations, US President Donald Trump said he learned about it from Putin himself and it made him "very angry." "It's a very delicate time," Trump said to journalists referring to Ukraine peace talks as he welcomed Israeli Prime Minister Benjamin Netanyahu at his private residence in Mar-a-Lago, Florida, on December 29.

Trump pointed out that he had refused to provide Ukraine with the Tomahawk missiles that Kyiv was asking for to hit Russian military targets and disable Russian armed forces' capacity for ground and air attacks. "It's one thing to be offensive, because they're offensive. It's another thing to attack his house. It's not the right time to do any of that," the US president added.

The Russian allegation came one day after Zelenskyy and Trump touted what they said was progress at a meeting in Florida, with the US president -- who spoke by phone to Putin hours before the meeting -- saying a peace deal to end the nearly four-year full-scale invasion could be "closer than ever."

Moscow has signaled it is not prepared to make substantial concessions.

Russia Claims Ukraine Carried Out 'Terrorist Attack'

In a statement posted on Telegram on December 29, Lavrov claimed that Ukraine used 91 drones in what he called a "terrorist attack," but that all of them were shot down and there were no reports of damage so far.

Lavrov said that Russia would not leave the attack unanswered and has selected "targets and timing" for retaliatory strikes.

He said that because Ukraine's government, which he called the "criminal Kyiv regime," had resorted to "a policy of state terrorism," Russia's "negotiating position will be reviewed." He did not elaborate.

Russian officials have used similar language to describe the Ukrainian government in the past, and Putin has repeatedly claimed that Zelenskyy is not a legitimate leader because an election was not held in 2024.

Elections in Ukraine are barred under martial law, which has been in effect since Russia launched the full-scale invasion in February 2022.

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Lavrov did not name the residence, but the location in the Novgorod region suggested that it is a well-protected compound at Valdai, a lakeside town whose forested location Putin has favored over other state residences since he launched the 2022 invasion of Ukraine, an investigation by Systema, RFE/RL's Russian investigative unit, found this year.

In a statement, Zelenskyy called Lavrov's claim "another lie by the Russian Federation," adding that "it is clear that for [Russia], if there is no scandal between us and the United States and instead there is progress, this is a failure for them. Because they do not want this war to end. They can only be forced to end it through pressure."

'Strong' Security Guarantees

Hours before Lavrov's post, Zelenskyy said the US has offered Ukraine "strong" security guarantees for 15 years as part of a peace deal to end the war with Russia, with Kyiv looking for a longer pledge from Washington to keep Moscow in check.

"I told him (Trump) that we already have a war going on and it has been going on for almost 15 years. And so I really wanted the guarantees to be longer," Zelenskyy told reporters in a WhatsApp chat a day after meeting Trump in Florida.

He was referring to Russia's 2014 annexation of Crimea, which preceded Moscow's full-scale invasion in February 2022.

"I told him that we really want to consider the possibility of 30, 40, 50 years. The president said he would think about it," Zelenskyy added.