VLADIMIR Putin’s £90million megayacht has fled Kaliningrad after the dictator threatened to use nuclear weapons in Ukraine — and changed its name to “Killer Whale”. The floating mansion, formerly called Graceful, was last seen headed for St Petersburg after leaving its port in the Russian province sandwiched between Poland and Lithuania. Carl GrollPutin’s superyacht has fled a port near Nato countries after the Russian tyrant made a nuclear threat against Ukraine[/caption] The luxury boat, valued at £90m, changed its name to ‘Killer Whale’ Pictures show the 270ft ship has been renamed Kocatka, the Russian for killer whale. It had been docked in the Kaliningrad Oblast since escaping sanctions by leaving a German shipyard days before the invasion of Ukraine by Mad Vlad in February. The vessel is believed to have turned off its AIS transponders which means it cannot be tracked Among luxuries on the yacht are a swimming pool that can be transformed into a dance floor and theatre, a grand piano and cocktail bar. READ MORE PUTIN CORPSE CRISIS Fears Germany won't have enough gas to cremate their dead amid energy crisis GOING NUCLEAR Five chilling ways Putin may fire nuke… from Poseidon test to Black Sea blast Putin’s other yacht, the £500million Scheherazade, believed to have been a Christmas gift in 2014, is impounded in Italy and is now under the flag of Malaysia. Meanwhile, Putin’s propaganda TV channel has shown a terrifying segment “in anticipation of nuclear conflict”. The ominous sequence, which was aired by pro-Kremlin broadcaster NTV, showed nuke explosions and the “Armageddon” aftermath of the blasts. NTV is owned by energy giant Gazprom, who last month released a video of Europe “freezing to death” without Russian gas in a bid to taunt Western powers. APPutin appeared to suggest he would be willing to use his nuclear arsenal against Ukraine[/caption] East2WestNTV’s chilling sequence shows an enormous mushroom cloud[/caption] Most read in News 'GRAVELY ILL' Rolf Harris 'can't talk & is under 24hr care' while battling neck cancer DESPERATE SEARCH Moors Murder cops give update on search for victim after ‘skull’ was found SLEEPOVER 'MURDERS' Man admits killing girls, 11, boy, 13, and mum but denies rape of child THY-PHONE 'Time-traveller' spotted 'holding iPhone' in 150-year-old painting PARK HORROR Neighbours hear screams as boy, 14, stabbed to death & teen arrested for murder KILLER DOGS Tributes to 'lovely' gran, 65, mauled to death by 'out-of-control' dogs