Vyacheslav Volodin claimed that the European Parliament calling for strikes inside Russia "leads to a world war using nuclear weapons".

Russian Foreign Minister Sergey Lavrov said that Russia possesses weapons "that will have serious implications for the handlers of the Ukrainian regime."

Ukraine's foreign minister said on Saturday that Russia is planning strikes on Ukrainian nuclear facilities before the winter, and urged the U.N.'s nuclear watchdog and Ukraine's allies to establish permanent monitoring missions at the country's nuclear plants.

Vyacheslav Volodin, chairman of the Russian Duma, has chillingly warned that Moscow can target the 'EU Capital' with nuclear weapons

The explosion would be at an old Soviet test site first used 70 years ago in the Novaya Zemlya archipelago and could be used by Vladimir Putin as a warning to the West over Ukraine

The agreement for Ukrainians to use Western weapons on the territory of the Russian Federation is still a topic of discussion among Kyiv's Western allies. Moscow is taking stringent measures to prevent this,