A former teacher who was charged last week for allegedly having sex with a student was arrested on Monday. Authorities say that 24-year-old Brandy Reynolds began a relationship with a male student when he was 15-years-old.

A warrant charges Reynolds with first-degree sexual assault, a Class II felony punishable by one to 50 years in prison. She's accused of having multiple encounters involving sexual penetration with the boy between December 2004 and May 2006, according to an affidavit filed in Dodge County Court.

Fremont detective Joyce Henke has said the boy, now 17, was a student at Omaha Baptist Academy, where Reynolds taught. She said the assaults occurred in Reynolds' apartment in Fremont and one other location described only as non-residential.

A complaint was filed with police April 28, after the boy's family members contacted the state Health and Human Services System. The boy, who was 15 when the alleged sexual relationship began, is from the Fremont area, Henke said.

Omaha Baptist Academy, which has about 30 students, is affiliated with Westwood Heights Baptist Church. A school official said Reynolds was an elementary teacher at the school from 2004 to 2006. She did not teach there this past academic year.

It is illegal in Nebraska for a person 19 or older to have sexual contact with a person under 16.