LANSING, Mich. (AP) — The NCAA has opened an investigation into how Michigan State University handled the case of sports doctor Larry Nassar, who faces prison time for sexually assaulting Olympic gymnasts and other young female athletes.

The New York Times reported Tuesday that the NCAA sent a letter of inquiry to MSU. A university spokesman confirmed to The Associated Press that the NCAA has sent a letter, but says he has not seen it and it is being reviewed to prepare a response.

The newspaper said Donald Remy, the association’s chief legal officer, said the NCAA “has requested information from Michigan State about any potential rules violations.”

Nassar worked at Michigan State University and USA Gymnastics, which trains Olympians. Former Spartan athletes are among the more than 150 women and girls who have spoken over the last week at Nassar’s sentencing.

Women’s gymnastics coach Kathie Klages resigned last year after she was suspended for defending Nassar for years.

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