Fremont police are searching for a woman accused of having a two-year sexual relationship with a boy who was 15 when the relationship began.

An arrest warrant issued this week charges Brandy Reynolds, 24, of Fremont with first-degree sexual assault, a Class II felony punishable by one to 50 years in prison. She is accused of having several sexual encounters with the boy between December 2004 and May 2006.

Fremont detective Joyce Henke said the boy was a student at Omaha Baptist Academy, where Reynolds taught. She said the assaults occurred in Reynolds' apartment and one other nonresidential location between December 2004 and May 2006.

Henke said it's believed Reynolds has left town.

A complaint was filed with police April 28, after the boy's family members contacted the state Health and Human Services System. The boy is from the Fremont area, Henke said.

Pastor Ken Largent said Reynolds was an elementary teacher at the school from 2004 to 2006. She did not teach there this past academic year.

The church's attorney, Jerry Rauterkus, said Reynolds quit her teaching job on her own and that the allegations against her were not known by the church leadership until recently.

"This came as a shock to them as it did to everybody else in the Fremont community," Rauterkus said. "She left, and they haven't heard from her since May of 2006."