As Russia made progress in revising its nuclear policy amid its war with Ukraine, North Korea vowed to never give up its own nuclear weapons despite demands from the West.

President Volodymyr Zelensky expressed skepticism in an interview with Fox News over Russian President Vladimir Putin's continued nuclear threats throughout the full-scale war, saying that Putin "loves his life" and is,

Explosions heard in Kyiv as Zelensky says Putin is afraid to use nuclear weapons - Kyiv, its surrounding region and all eastern parts of Ukraine are under air raid alerts this morning

The Kremlin said on Sunday that amendments to Russia's nuclear doctrine had been prepared and were about to be formalised, meaning the relevant documents setting out the circumstances in which nuclear arms can be used by Moscow will be updated.

Kremlin spokesman Dmitri Peskov said on Sunday that Moscow's revised nuclear weapons doctrine is needed because NATO infrastructure is approaching Russia's borders ever more closely. Peskov told Russian state television that Western powers are seeking victory over Russia through their arms deliveries to Ukraine.

Russia's nuclear doctrine has been amended to facilitate the use of nuclear weapons against the West, claims Alexander Lukashenko.