The SpaceX, Tesla, and X owner is among more than 100 major figures at the UK's landmark safety summit on AI, alongside the likes of OpenAI's Sam Altman, Google DeepMind's Demis Hassabis, and US vice president Kamala Harris.

The SpaceX and Tesla owner has long been outspoken about the dangers posed by artificial intelligence, and earlier this year warned it could even lead to "civilisation destruction"

Asked by Sky News at the summit whether he still thought AI was a "threat to humanity", he replied: "It's a risk."

It comes as countries including the US and China backed a UK deal to collaborate on the need to manage the potentially "catastrophic" dangers it could pose.

The world's leading AI powers were among 28 nations to agree to the UK's Bletchley Declaration, which stresses the need for countries to work together to harness the technology's potential while keeping people safe.

The deal gets its name from Bletchley Park, home to Britain's Second World War codebreakers, where the two-day summit kicked off on Wednesday.

Mr Musk is among more than 100 major figures from politics and business in attendance, including the likes of OpenAI's Sam Altman, Google DeepMind's Demis Hassabis, and US vice president Kamala Harris.

Following the close of play on Thursday, Mr Musk will join Rishi Sunak for a live chat on X (formerly Twitter).

But men have spoken of similarly dystopian threats posed by AI, such as terrorists developing bioweapons or humanity losing control of the tech altogether.