Former U.S. House Speaker Dennis Hastert must report to a federal prison in Minnesota by Wednesday afternoon to serve a 15-month sentence.

Hastert, who is said to have numerous health issues, is reportedly required to report to the Rochester Federal Medical Center in Minnesota.

The former Republican lawmaker received a 15-month prison sentence in late April for violating bank reporting requirements. The bank violations were in connection with a hush money scheme to conceal past sexual misconduct dating back to when Hastert, 74, was a teacher and wrestling coach at Yorkville High School.

As part of his punishment, Hastert must also pay a $250,000 fine, be on supervised release for two years and undergo sex offender treatment.