LUMBERTON, Texas  —  A former high school teacher accused of having sexual relations with a 17-year-old student has been indicted on two charges of an improper relationship with a student.

Kathy Denise White (search), 39, was indicted by a Hardin County grand jury Tuesday. White is accused of having at least two sexual encounters in September 2004 with the male student, who is now 18, according to the indictment.

The indictment comes after a Lumberton Police Department investigation and White's resignation last month from the school district, where she worked as a resource teacher at Lumberton High School (search).

"She didn't do it and is denying the allegations," David Barlow, White's lawyer, said Tuesday in a phone interview. "Since I've been involved in this, the allegations have been embellished.

"We don't even know who the complaining witness is because the indictment only has initials."

Lumberton Police Chief Norman Reynolds said one of the alleged encounters took place at White's home, while the other was at school.

White turned herself into police Tuesday and was released from the Hardin County Jail on a $2,500 bond, Barlow said.

Improper relationship between an educator and a student is a second-degree felony that carries a punishment of up to 20 years in jail and a $10,000 fine.