TECUMSEH, Neb. (AP) — A southeast Nebraska woman accused of having sex with a 15-year-old student has been sentenced to four to five years in prison.

Carrie Miller of Tecumseh pleaded guilty to charges as part of plea deals in Johnson and Nemaha counties. She was sentenced Wednesday in Nemaha County. The 25-year-old was also ordered to register as a sex offender for 15 years.

According to court documents, Miller taught at Johnson County Central High School and had a relationship with the teenager for about year. Under Nebraska law, people 19 and older cannot have sexual contact with people younger than 16.