The SpaceX founder, who is hoping to become the first man to establish a human colony on Mars, said humans should be "vastly" more concerned about robots taking over the world.

Mr Musk's tweets come after Trump and Kim Jong-un continue to ratchet up fears of World War 3 with their foreboding rhetoric. The US President has threatened to unleash "fire and fury" upon Pyongyang, while the hermit kingdom has promised to strike the US-territory of Guam by mid-August.

Despite escalating world tensions, Mr Musk dismissed the imminent threat and tweeted: "If you're not concerned about AI safety, you should be. Vastly more risk than North Korea."

In his tweet, he included a image of a framed picture of a worried-looking woman, with the bold, capped up words reading "IN THE END THE MACHINES WILL WIN".