Tech mogul Elon Musk has warned about the 'existential threat' facing the world, as he arrives at the AI safety summit in London.

The owner of SpaceX and social media platform X, formerly Twitter, addressed the concerns around the fast-paced growth of AI, as global leaders meet in Britain's captial.

Speaking to media at the summit, Musk says he hopes the summit will bring "international consensus on the insight into advanced AI".

He added that there's "a lot of concern" among people in the AI field that the government will "sort of jump the gun" on rules before knowing what to do.

King Charles is in attendance at the summit, and is joined by many global figures including US Vice President Kamala Harris, European Commission President Ursula von der Leyen and United Nations Secretary-General Antonio Guterres.

In his keynote address at the Summit, King Charles called AI "one of the greatest technological leaps in the history of human endeavour".

The monarch added: "The rapid rise of powerful artificial intelligence is considered by many of the greatest thinkers of our age to be no less significant."