INDIANAPOLIS (AP) — An exclusive private school in Indianapolis is under scrutiny over how it handled the allegations that its boys basketball coach sent sexually explicit messages to a 15-year-old female student.

Federal court documents say Park Tudor School officials notified the state child welfare agency the same day Kyle Cox quit in December, but also allowed him to temporarily keep a school computer.

RELATED: Kyle Cox, former Indiana high school basketball coach, faces sex-related charges, February 5, 2016

Indiana University law professor Frances Watson says that could have allowed the destruction of evidence in the case. Court documents don’t say whether anything was removed.

The U.S. attorney’s office says the investigation is continuing and won’t say whether anyone else may face charges.

A Park Tudor spokeswoman says the school is cooperating with investigators. Cox is in federal custody and his attorney hasn’t returned phone calls.