Meanwhile, Russia's Ministry of Defence says it might launch major assaults to take full control of cities that are already surrounded - but that President Putin hasn't ordered this yet.
Addressing the Council of Europe on Monday, Ukrainian Prime Minister Denys Shmyhal said that "what Putin has started in Ukraine could turn into World War III",
Claiming that Moscow's possession of nuclear weapons is a threat that could see Europe and the rest of the world "set on fire", Shmyhal demanded "an immediate expulsion" of Russia from the human rights organisation.
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