LANSING - The former Michigan State University doctor already facing sexual assault charges in Ingham County was arrested Friday morning by federal law enforcement officials on child pornography charges.

Matthew Newburg, Larry Nassar's attorney, said his client had been arrested but declined to comment further.

Nassar was indicted on two federal charges: possession of child pornography and receipt/attempted receipt of child pornography.

According to the indictment unsealed Friday, in 2004 Nassar received or attempted to receive images of child pornography, and between 2003 and 2016 possessed one or more computer files or disks that had thousands of images of child pornography.

The pornography included images of a person younger that 12 years old, according to the indictment.

He was arraigned Friday afternoon in Grand Rapids and was remanded into custody of the U.S. Marshals Service, according to federal court records. A spokesman for the Marshals Service said bond was denied.

The Michigan Attorney General's Office charged Nassar, 53, last month with three counts of first-degree criminal sexual conduct with a person younger than 13, which carries a maximum sentence of life in prison. The charges came months after two women made allegations to the Indianapolis Star that Nassar sexually assaulted them during medical examinations.

Since then, police and prosecutors have said that roughly 50 women have come forward with similar allegations, some dating back decades, and that more charges are expected.

Nassar had been free on a $1 million bond.

During a news conference last month announcing the state charges, Attorney General Bill Schuette said his office was working with the FBI and the U.S. Attorney's office in Grand Rapids.

The alleged abuse connected with the three Ingham County charges took place at Nassar's home in Holt between 1998 and 2005, according to court records. The victim wasn't a gymnast or patient, but many of the other women who have made allegations were, prosecutors said.

At MSU: Assault, harassment and secrecy

Nassar, through his attorneys, has denied the allegations.

The former MSU team physician, who was fired in September, served as USA Gymnastics’ team physician during four Olympic Games and is one of the figures in a nationwide scandal involving how the organization handles allegations of sexual assault.

MSU investigated and cleared Nassar in 2014 after a then recent graduate reported that he sexually assaulted her during an appointment at his campus office for a treatment for hip pain, according to university records. Police also investigated those allegation, but prosecutors declined to issue charges.

The university also cleared Nassar in an internal investigation. As part of that Title IX investigation, a university Title IX investigator sought the opinions of four medical experts to determine if what Nassar did was an appropriate medical procedure or sexual assault, records show. All had close ties to MSU and Nassar, and all said he did nothing improper.

Beth LeBlanc contributed to this report. ContactMatt Mencarini at (517) 267-1347 or mmencarini@lsj.com. Follow him on Twitter@MattMencarini.