Story highlights Larry Nassar was team doctor for the Michigan State University gymnastics and women's crew teams

Nassar served as the USA Gymnastics physician through four Olympics

(CNN) The Michigan attorney general has received more than 50 additional complaints since a former USA Gymnastics and Michigan State University doctor was arrested Monday and accused of sexually assaulting female minors throughout his career.

Former USA Gymnastics physician Dr. Larry Nassar was arrested and charged with three counts of criminal sexual assault of a person under 13 years old, according to court documents. A conviction could result in a life sentence.

Officials did not detail the nature of the new complaints, including the number of victims, in a joint news conference held by Michigan State Police Chief Jim Dunlap and the Attorney General's Office on Tuesday. An investigative team will be dedicated to vetting the new complaints against Nassar, Dunlap said.

Nassar, 53, was the team physician for the Michigan State University gymnastics and women's crew teams as well as an associate professor in the College of Osteopathic Medicine. Nassar, who is married with three school-aged children, served as the USA Gymnastics physician through four Olympics.

Court documents say the sexual assault Nassar is charged with occurred between 1998 and 2005, with the first incident on July 1, 1998. The victim in that case was not a patient nor a gymnast who worked with Nassar, according to Attorney General Bill Schuette.

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