The chief executive of tech giant Nvidia has admitted having an affair, with the company investigating reports that he was targeted by a foreign intelligence effort.
Jensen Huang, one of the most important people in the AI industry, admitted the affair when writing to colleagues.
It comes after a New York Times report alleged the 63-year-old had a close relationship with Alice Huang, a former executive from Singapore-based tech company Megaspeed, who passed information to Beijing.
Ms Huang is no relation to Jensen Huang.
Nvidia makes the dominant computer chips fuelling the AI boom and its stock market value has soared in recent years.
As of Friday, it was the world's second-most valuable public company despite taking a big hit following the US midterms last week.
The latest revelations could see its shares fall again when the US stock market opens.
Nvidia announced an independent investigation into the claims, while top Republicans have called on Mr Huang to brief Congress next week.
"The Nvidia board is initiating an independent investigation in light of recent reporting that founder and CEO Jensen Huang has been the target of a foreign intelligence effort," a statement said.
"A committee of independent directors, assisted by outside independent counsel, will oversee the investigation."
It added: "While the board has no reason to believe that either national security or Nvidia secrets were compromised, the board's inquiry will examine all available information."
Mr Huang, who at first denied reports of an affair, supports the review and has committed to cooperating with it, the board said.
In a memo to Nvidia employees, Mr Huang said: "I was unfaithful to my wife. My actions hurt her and our children. There is no excuse for what I did.
"To my wife and family: I love you. I know an apology cannot undo what I have done. I hope our family will heal and that, over time, I can earn back your trust."
Mr Huang went on to say those at the company "deserve better from me" and he was "fully committed to Nvidia and will work to earn back your confidence".
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An Nvidia spokesperson said Mr Huang was "committed to continuing to lead Nvidia as CEO without interruption".
President Trump told reporters he hadn't spoken to Mr Huang about the allegations.
"I just know he's a fine person, but you never know what is going on. I hope everything's fine - he's done such an incredible job," said the president.
The Nvidia boss has appeared alongside Mr Trump and other tech bosses at a number of events, including his trip to China earlier this year to meet President Xi Jinping.
US politicians chairing three committees - on China, foreign affairs, and intelligence - said the reports raised "significant national security concerns regarding the PRC's access to sensitive US technology and information".
They said they had written to Mr Huang to request he briefs them behind closed doors on 18 November.
China has denied the reports of spying. Foreign ministry spokesperson Guo Jiakun said in a press conference: "The claim of so-called 'Chinese spies' is completely groundless and is nothing but a smear against China."
Nvidia was originally a maker of graphics hardware for gamers, but the $4.5trn (£3.7trn) firm is now the world's biggest chip maker and powers the likes of ChatGPT and Google's Gemini, as well as the UK's most powerful supercomputer.
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China has long sought to become a global leader in AI, with President Xi having set a 2030 deadline to surpass the capabilities of American AI systems.
Restrictions in both countries mean Nvidia is effectively blocked from selling its advanced H200 chips to Chinese firms, potentially costing it billions in lost sales.
(c) Sky News 2026: Nvidia launches investigation into Jensen Huang's affair with 'Chinese spy'
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