Kyiv Mayor and former boxing champion Vitali Klitschko says Russia's invasion of Ukraine has the capacity to touch 'everyone" on the planet.
'Please don't forget Ukraine has five nuclear plants,' he told Sky News Australia host Piers Morgan.
Mr Klitschko said if the biggest of these plants were to catch fire, the explosions would be much bigger than those seen in the Chernobyl catastrophe.
'In this case, this war can touch personally everyone in the planet,' he said.
