Larry Nassar, the former Michigan State University sports doctor accused of sexually abusing more than 100 former patients, has agreed to plead guilty to federal child pornography charges, according to reports in the Detroit News and ESPN.

In exchange, the FBI will drop its investigation into "conduct that allegedly occurred in his swimming pool during the summer 2015 involving two minor children" and allegations of sexual abuse that occurred during interstate and international travel between 2006 and 2012 involving two other girls, said the Detroit News, which broke the story.

The interstate and international traveled involved Nassar's work with top U.S. gymnasts while he was team doctor and chief medical director for USA Gymnastics, the organization that oversees the sports in the U.S.

The News said the plea agreement was signed by Nassar and his attorney, Matthew Newburg, and is expected to be filed this week in federal court.

Under the agreement, Nassar will plead guilty to receipt of child pornography, possession of child pornography and destruction and concealment of records, the News said.

The charges carry penalties of at least five years, and up to 40 years, in prison.

A federal grand jury determined that Nassar possessed thousands of images of child pornography on his computer. The grand jury also found that Nassar used a third-party vendor to permanently delete his laptop hard drive after he came under investigation, and the FBI retrieved a number of external hard drives from his trash.

His trial was scheduled for August.

Newburg and the federal attorney general's office could not be reached for comment. But Rachael Denhollander, one of the women accusing Nassar of abuse, said she was told about the plea agreement by her attorney.

"While I appreciate the work federal investigators have done, I am deeply disturbed by this plea deal," Denhollander said in a statement to MLive.

"It isn't justice for any of the victims -- 37,000 images of child pornography were found on Nassar's computer, including videos of him in a pool with little girls," she said. "As a mother, those little girls, and every other little girl used to make the pornography Nassar was viewing, weigh heavily on me. I feel like I see them every day in the eyes of my own young daughters."

The plea bargain does not affect criminal cases being prosecuted by the Michigan attorney general's office. Nassar faces 28 charges of criminal sexual conduct in Ingham and Eaton counties for alleged assaults that occurred at MSU's sport-medicine clinic and his Holt home, and at Twistars, a gymnastics club in Dimondale.

In addition, a total of 119 former patients have filed lawsuits alleging they were abused by Nassar.

Nearly all of the plaintiffs were adolescents or college-age women when they were treated by Nassar for back, hip and other injuries. The common allegation in the lawsuits is that Nassar's treatments involved vaginal and/or anal penetration without their consent.

The allegations date from 1994 to 2016.

Nassar stopped working with USA Gymnastics in 2015, and he was fired by MSU in September 2016.

Almost all of the suits list Michigan State, USA Gymnastics and Twistars as co-defendants, alleging those institutions ignored red flags about Nassar's behavior.

MSU, which fired Nassar in September 2016, has denied wrongdoing. The MSU Office for Institutional Equity ruled against Nassar in a Title IX investigation into a complaint filed last August by Denhollander, who was treated by Nassar in 2000 when she was 15.

That investigation found a "preponderance of evidence" supported Denhollander's allegations that she was sexually abused by Nassar under the guise of medical treatment.

Twisters has declined comment.

USAG released an internal report in June that found that the organization failed to immediately report all allegations of abuse to law enforcement, and had no protocol for addressing sex-abuse complaints.