Federation Council Deputy Speaker Konstantin Kosachev stressed that Russia has to send additional messages to the US

Moscow insists "that all countries adhere to their commitments under the Comprehensive Nuclear-Test-Ban Treaty," Dmitry Peskov said

US President Donald Trump said earlier that he had handed down instructions to resume nuclear weapons tests, arguing that some other countries were engaged in that

The Russian politician stressed that Donald Trump "is the president of the United States, and the consequences of his words are inescapable"

Federation Council Deputy Speaker Konstantin Kosachev stressed that Russia has to send additional messages to the US

Kremlin Spokesman Dmitry Peskov emphasized that Russia is trying to figure out whether there is a need to start them

Maria Zakharova added that the context around the US intentions to carry out nuclear tests should be clarified