This is reported by the official website of the White House.
Biden emphasized that Russia has not yet deployed nuclear weapons in Belarus and noted that he is concerned about Putin's intention.
"They haven't done that yet. Sure, I am concerned about this. This is a dangerous kind of talk he (Putin -ed.) uses, and it’s worrisome.”
On March 25, Vladimir Putin said that a storage facility for Russian tactical nuclear weapons would be completed in Belarus by July 1.
The Institute for the Study of War reported that Putin announced the deployment of tactical nuclear weapons in Belarus to frighten the West and reduce the effectiveness of Ukraine's counteroffensive.
National Security and Defense Council Secretary Oleksiy Danilov said that the deployment of Russian nuclear weapons in Belarus increases the level of rejection of Russia and Putin in Belarusian society. In turn, Mykhailo Podolyak, an adviser to the head of the Presidential Office, noted that with this statement, Vladimir Putin admits to fear of losing the war.
The German Foreign Ministry criticized Russia's deployment of nuclear weapons in Belarus and called it an "attempt to intimidate." The Ukrainian Ministry of Foreign Affairs responded to Russia's intentions to deploy tactical nuclear weapons in Belarus and demanded that the UN Security Council be convened.
On March 27, the Chinese Foreign Ministry said that Beijing does not approve of Russia's intention to deploy tactical nuclear weapons in Belarus.