Michael Oreskes, the former NPR news executive who resigned in November amid sexual harassment accusations, was repeatedly warned about his behavior but continued to act inappropriately toward women, according to an independent investigation released on Tuesday.

The report by the law firm Morgan Lewis, which was hired by NPR, said that Mr. Oreskes repeatedly expensed meals with young female employees, ostensibly to discuss their careers, but that the conversations often veered into sexual and other personal territory. He set up similar meetings with young women, including college students, who did not work at NPR, the report found.

“While management made multiple attempts to counsel Mr. Oreskes about his conduct, he was not deterred from pursuing conversations and dinner meetings with women inside and outside of NPR that were inappropriate and served a nonbusiness purpose,” the report said.

Concerns about Mr. Oreskes, 63, who was NPR’s senior vice president for news and its editorial director, were raised even before he was hired, and continued to be discussed among executives throughout his two and a half years at the company, the report found. And in the course of the two-month investigation, the law firm found “a very prominent distrust of management at NPR.”