A former Crest High School teacher has been arrested for allegedly having sex with a student while she was still employed at the school.

Emma Logan Costner, 25, is charged with two counts of sex with a student after a week-long investigation by the Cleveland County Sheriff's Office. She turned herself in to the Sheriff's Office on Wednesday morning.

Costner is accused of having sex with a 17-year-old girl who attended the school.

"These are very serious allegations. We send our kids to school to get an education, to learn to be adults in the world and we don't expect teachers to prey on those children or exploit those relationships with the children," said Jon Wright with the Cleveland County Sheriff's Office.

Investigators became aware of the allegations after the student's parents came forward, said Wright.

"About a week ago, we received notification from the victim's parents. They suspected their daughter was having an inappropriate relationship with a member of the Crest High School staff," Wright said.�

There is no evidence any incidents happened on school grounds or of any other students being involved, he added.

Costner started at Crest High School as a math teacher on Aug. 16, 2017. She resigned from her position Sept. 25. During her tenure, she had no disciplinary actions against her.

"We appreciate the work of the Cleveland County Sheriff's Department as they conducted a thorough investigation regarding the former employee. We are fortunate to have dedicated law enforcement agencies in Cleveland County and appreciate their support in ensuring the safety of our schools," said Cleveland County Schools spokesman Greg Shull.

Costner has been released on a $10,000 secure bond.

According to Wright, the teenager is doing OK.

"I think she has a very supportive family that will help her get through this," he said.

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Joyce Orlando can Be reached at 704-669-3341 or find her on Twitter @Star_J_Orlando.

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