East Lansing — Lawyers for 13 women and girls have told Michigan State University that they plan to sue the school over alleged sexual assaults by a doctor who also worked for USA Gymnastics.

A notice was filed Tuesday in the Court of Claims. It’s a procedural step under state law.

The letter accuses Dr. Larry Nassar of “digital penetration” without proper notice “under the guise of providing care” at his office at Michigan State, from 1996 to 2015. Attorney Stephen Drew said most were gymnasts from across Michigan.

The notice said Michigan State didn’t properly investigate complaints about Nassar. Michigan State spokesman Jason Cody declined to comment on the filing.

Nassar, 52, no longer works on campus.

Separately, Michigan Attorney General Bill Schuette's office recently charged Nassar of Holt with three counts of first-degree criminal sexual conduct for alleged actions involving persons under the age of 13. The alleged victim was not a patient of Nassar's, a gymnast or a member of his family, Schuette said. Her complaint alleges Nassar assaulted her at his home multiple times between 1998 and 2005.

He denies wrongdoing.

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