(CNN) A former coach accused of failing to stop Larry Nassar's abuse decades ago is now on trial, accused of lying about what she knew of the doctor's sexual misconduct.

Kathie Klages, a former Michigan State University women's gymnastics coach, is charged with two counts of lying to a peace officer -- one felony count and one misdemeanor count.

Kathie Klages retired from MSU in 2017.

"While investigating how Larry Nassar was able to get away with sexually assaulting hundreds of individuals on and off Michigan State's campus, Klages denied to Michigan State Police detectives having been told prior to 2016 of Nassar's sexual misconduct," the Michigan attorney general's office said in a statement.

"Witnesses have said that they reported Nassar's sexual abuse to Klages dating back more than 20 years."

Nassar, once a prominent team doctor for Michigan State and USA Gymnastics, was sentenced to 40 to 125 years in prison after almost 200 girls and women shared their stories of sexual abuse.

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