‘Traitor’ Ukrainian Putin-ally calls on Russia to use ‘weapons of MASS DESTRUCTION’ after nuke bomber flies near border

AN expelled Ukrainian MP turned Putin ally has called on Russia to use "weapons of mass destruction" after a nuke bomber was caught flying close to the border.

Ilya Kiva - who was thrown out of parliament for supporting the Kremlin's invasion - has urged Putin to launch a "pre-emptive strike" amid fears Moscow could resort to using nuclear weapons.

"Remember!!! - They are afraid and respect only power!!!," the opposition politician wrote on Telegram under a picture of a nuclear explosion.

"Zelensky, his entourage and western curators are most afraid of a Russian pre-emptive strike (with) weapons of mass destruction.

"Only this can put an end to today's confrontation, not only with the Ukrainian authorities, but with the entire West which actively and already openly takes part today in the military conflict in Ukraine.

"If anyone thinks that this is not according to the rules, remember: the West wrote these rules in its own interests and only in order to more effectively destroy you."

Kiva, 44, has been charged with treason by Ukraine and is reportedly hiding in Russia after he was expelled from parliament in March for supporting the war.

His remarks come after one of Putin's nuclear bombers was spotted flying close to the Ukrainian border on Monday in a major major military escalation.

The TU-160 strategic bomber was seen in the skies over Western Russia amid huge pressure on the Kremlin over the sinking of the Moskva flagship in the Black Sea. 

Videos caught four aircraft - one used to carry nuclear bombs - over Kaluga region, between Moscow and the Ukrainian border.

Meanwhile, Volodymyr Zelensky has warned the West must prepare for a Russian nuclear doomsday by stockpiling anti-radiation drugs and building shelters.

The battle-hardened leader told  Putin could use tactical nukes if his war in Ukraine continues to stall.

Zelensky told the outlet on Friday: "We shouldn't wait for the moment when Russia decides to use nuclear weapons... We must prepare for that."

He said anti-radiation medicine and air raid shelters would be needed to repel the attack, which he was "convinced" was being planned.

"All of the world, all of the countries have to be worried because it can be not real information, but it can be truth," Ukraine's head of state said.

"Chemical weapons, they should do it, they could do it, for them the life of the people, nothing. That's why.

"We should think not be afraid, not be afraid but be ready. But that is not a question for Ukraine, not only for Ukraine but for all the world, I think."

It comes as Putin's forces hit more than 300 Ukrainian military targets overnight in the first major missile strike in weeks.

Russia's military claims to have hit fuel depots, warehouses and other vital infrastructure in eastern Ukraine, killing six people.

The Kremlin was seeking revenge for the embarrassing sinking of its flagship Moskva by Ukrainian troops.