RUSSIAN state TV has threatened to drown the UK under a radioactive tsunami in a bizarre new propaganda video.
In the chilling broadcast the presenter also showed how the Kremlin's latest world-ending Satan 2 nuclear missile could also annihilate Britain.
And now raising further plans for all-out war, brazen host Dmitry Kiselyov heralded Russia’s second option to “plunge Britain into the depths of the sea" with its “underwater robotic drone Poseidon”.
In a chilling graphic he warned the missile would raise a giant tsunami wave up to 1,640ft high.
He later predicted the surging water - reaching almost halfway up Scafell Pike in the English Lake District - would contain “high doses of radiation” turning what is left of Britain into a “radioactive desert”.
His double whammy threat was based on the “baseless” premise perpetrated by the Russian state media and officials in the past week that Boris Johnson had threatened to carry out a nuclear strike on Russia without consulting NATO.
Downing Street last week dismissed this as “another example of disinformation peddled by the Kremlin", but it continues to be trumpeted in Moscow.
The invective from Russian state TV appears to get more extreme as Putin’s war in Ukraine becomes more mired with rising losses of troops and armaments.
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In a verbal attack, Kiselyov said Britain - which has angered Moscow with its steady supplies of weaponry to Kyiv - was no match for Russia.
He asked: “And what will happen after Boris Johnson's words about a ‘retaliatory strike on Russia’?”
Accusing Britain of “rambling”, he said: “Why do they threaten vast Russia with nuclear weapons while they are only a small island?
“The island is so small that one Sarmat missile is enough to drown it once and for all…
“Russian missile Sarmat [aka Satan-2], the world most powerful…is capable of … destroying an area the size of Texas or England.
“A single launch, Boris, and there is no England anymore."
Putin himself last week darkly warned of using nuclear weapons against the UK and its European allies as devastating nuke maps were broadcast across Russian TV.
It gleefully warned Berlin can be nuked in 106 seconds, Paris in 200 seconds and London in 202 seconds.
The Sarmat hypersonic 208-ton ’Satan-2’ intercontinental ballistic missile has a speed of 15,880mph and is claimed by the Kremlin leader to be “unstoppable”.
A video showed the killer missile being launched from an underground silo, triggering an enormous fireball.
It travelled almost the entire length of Russia - almost 3,600 miles - in around 15 minutes and landed at Kura Missile Test Range on the Kamchatka Peninsula.
The bombs are 1,000 times more powerful than those dropped by the US on Hiroshima and Nagasaki in Japan during World War Two.
It comes as Russia's foreign minister warned a nuclear world war is now a "real" danger as British and NATO weapons are already "legitimate" targets in Ukraine.
Sergei Lavrov said the risk of World War 3 is now "considerable" - saying the West is essentially fighting a proxy war against Moscow via its support for Kyiv.
Lavrov accused Nato forces of "pouring oil on the fire" by "pumping weapons into Ukraine".
In an interview with Russian news agencies, he said: "This is our key position on which we base everything.
"The risks now are considerable.
"I would not want to elevate those risks artificially. Many would like that. The danger is serious, real, And we must not underestimate it."
Lavrov accused the West of deliberately attempting to "wear down the Russian army" and exhaust their ability to make war - something the minister bullishly said was an "illusion".
But he claimed Russia wanted to prevent a nuclear war at all costs.
It comes as it was revealed that Putin may have to hand power to his shadowy spy chief amid rumours of poor health.
It has been reported the Russian leader, 69, could go under the knife with power switched to hardliner Nikolai Patrushev, 70, who is a key architect of the war strategy and the man who convinced Putin that Kyiv was awash with neo-Nazis.