He recalled that Western leaders demanded that Russia "remove its hand from its" nuclear button ".

“I have to remind you again - for those deaf who hear only themselves.

Russia has the right to use nuclear weapons if necessary.

In predetermined cases,” Medvedev wrote on Telegram.

According to the politician, in accordance with the Fundamentals of State Policy in the Field of Nuclear Deterrence, the use of nuclear weapons is possible in the event of an attack on Russia or its allies using this type of weapon, or if aggression using conventional weapons threatens the very existence of the state. 

He added that Russia would do everything to prevent the appearance of nuclear weapons in hostile neighbors, such as Ukraine.

UN Secretary General António Guterres urged world powers to "take a step back" in nuclear rhetoric, as well as move away from "nuclear blackmail".