India, Nov. 9 -- US secretary of state Marco Rubio had warned top Trump administration officials about Nvidia CEO Jensen Huang's close relationship with a suspected Chinese spy, according to a report that surfaced after the tech star admitted to having an affair with the woman.

The matter came to light on November 7 when the New York Times reported that Alice Huang, a Chinese citizen working as a senior executive at a Singapore-based company Megaspeed International, had become close to Jensen Huang and was working for a Chinese spy agency.

A classified memo was drafted earlier this year warning top US officials that Huang was in a close relationship with a woman who had been recruited to spy for China's top intelligence agency. Rubio ov...