Kremlin spokesperson Dmitry Peskov was “just lying” when he accused Washington of coordinating drone attacks on Moscow, National Security Council spokesperson John Kirby said Thursday.

“I can assure you that there was no involvement by the United States. Whatever it was, it didn’t involve us,” Kirby said on MSNBC when asked about Peskov’s comments. “We had nothing to do with it. Peskov is just lying there, pure and simple.”

Peskov’s accusation came after two drones struck Moscow on Wednesday in what Russia characterized without evidence as an assassination attempt on Russian President Vladimir Putin by Ukraine.

Ukrainian President Volodymyr Zelenskyy denied the accusation, and U.S. officials said they had no advanced knowledge of the attacks.

Peskov reportedly said during a press conference earlier Thursday that “attempts to disown this, both in Kyiv and in Washington, are, of course, absolutely ridiculous. We know very well that decisions about such actions, about such terrorist attacks, are made not in Kyiv but in Washington.

“Kyiv only does what it is told to do,” Peskov said.

Kirby said on MSNBC that the U.S. doesn’t encourage or enable Ukraine to strike within Russian borders, saying that “we certainly don’t dictate the terms by which they defend themselves or the operations they conduct.”

During a surprise trip to the Netherlands on Thursday, Zelenskyy reiterated his plea for a special tribunal to hold Putin accountable for war crimes.

“We all want to see a different Vladimir here in The Hague,” Zelenskyy said. “The one who deserves to be sentenced for these criminal actions right here, in the capital of international law.”

The International Criminal Court, which is based in the Hague, in March issued an international arrest warrant against Putin over the forced deportation of Ukrainian children to Russia since the war began. While the court doesn’t have the authority to prosecute the crime of aggression, Zelenskyy said the rules need to change.

“If we want true justice, we should not look for excuses and should not refer to the shortcomings of the current international law but make bold decisions that will correct that shortcomings that unfortunately exist in international law,” Zelenskyy said in a speech.