Ryabkov said that "further clarifications" would probably be made to the doctrine to reflect the Ukrainian war experience, "when the classic old interpretation of nuclear deterrence did not work properly," RIA Novosti reported.

Ryabkov said Russia is ready to do everything to ensure its security and "Western provocateurs" should understand this, Xinhua news agency reported.

However, he also said that everything must be done to prevent a decline in the use of nuclear weapons.