SIOUX CITY, Iowa (AP) – A former Sioux City band teacher has pleaded guilty in a student sex case and likely will serve 30 days in jail under a plea agreement with prosecutors. The Sioux City Journal reports 34-year-old Lucas Sursely pleaded guilty Tuesday to an aggravated misdemeanor charge of sexual exploitation by a school employee. The charge was reduced from a felony.

The plea and sentencing needs a judge’s approval. The agreement says Sursely must also serve two years of probation and register as a sex offender. He was arrested in December after authorities say he texted a 15-year-old student about having sex with her and sent the girl a picture of himself in his underwear.

Sursely has resigned from his position as Sioux City North High School band director.