Comcast announced on Sunday that NBCUniversal CEO Jeff Shell is stepping down following an investigation by outside counsel after a complaint of “inappropriate conduct.” Comcast said Shell’s departure, “effective immediately,” followed an investigation led by outside counsel into a complaint, but offered no further details, nor did the say who will succeed Shell. Comcast and Shell jointly announced the news, noting that the two mutually agreed on the decision.

Shell, who had been with the company since 2004, said in a statement: “I had an inappropriate relationship with a woman in the company, which I deeply regret. I’m truly sorry I let my Comcast and NBCUniversal colleagues down, they are the most talented people in the business and the opportunity to work with them the last 19 years has been a privilege.”

Shell was named CEO of NBCUniversal in January 2020. According to the company website, he oversaw the company’s portfolio of news and entertainment television networks, a premier motion picture company, significant television and sports production operations, and a leading television stations group. He also oversaw the company’s theme parks and their streaming service Peacock, launched in 2020.

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