Nvidia CEO Jensen Huang has pulled out of the ElevenLabs Summit scheduled for this Wednesday in New York, the voice AI company confirmed Monday. He has also dropped out of other speaking engagements, including the Anthropic CEO Forum, TechCrunch reported. Nvidia is an investor in ElevenLabs.

The withdrawals come after Huang admitted to an extramarital affair over the weekend, and after Nvidia opened an investigation into his relationship with a possible Chinese spy. “I owe my family and all of you an apology. I was unfaithful to my wife. My actions hurt her and our children. There is no excuse for what I did. I am deeply sorry,” Huang said in a memo to the company.

Huang had been listed as the first speaker on the summit lineup, due to take part in a fireside chat with ElevenLabs CEO Mati Staniszewski on November 11. His name and photo have since disappeared from the speaker page, and the slot is now billed as a closing keynote from Staniszewski alone. His Anthropic CEO Forum appearance, in Montecito, California, was to have been an interview.

The admission followed an October 29 New York Times report that U.S. officials had concluded that Alice Huang, a Megaspeed executive with no relation to Jensen Huang, was a Chinese intelligence asset who had developed a close relationship with him. Nvidia’s board has since opened an independent probe into reports that he was the target of a foreign intelligence effort. The allegations against Alice Huang remain unproven: Nvidia has said Huang’s interactions with her were not unusual for a CEO who meets customers regularly, and the Chinese embassy has rejected the claims.

TechCrunch reports that the incident has rattled the AI industry, raising questions about Huang’s staying power as CEO and Nvidia’s own China ambitions. Nvidia has not yet said whether Huang will make other scheduled appearances in the coming weeks.