A world on the brink of disaster; Russia warned: You won't have to wait long for our nuclear response

"We presented our position on this issue some time ago. This was done in particular detail when the decision was made that Russia withdraw its ratification of the Comprehensive Nuclear-Test-Ban Treaty," said Ryabkov.

According to his words, Moscow will respond reciprocally, and the reaction will be quick, if a country makes a wrong decision harmful to global security to conduct nuclear tests.

"If any capital that has the appropriate potential makes decisions, wrong and harmful to international security, about conducting tests, and of course the focus of our attention is Washington, then we will respond in the same way, and the response will not be long in coming," Ryabkov concluded.

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Earlier, US Deputy Secretary of Energy for Nuclear Safety Brandon Williams, speaking at his confirmation hearing, said he opposed underground nuclear testing and prioritized the development of scientific methods to verify the reliability of warheads.

In May, the US Department of Energy announced that the National Nuclear Security Administration had conducted a "non-critical experiment" in Nevada to gather data on the functioning of the US nuclear arsenal.