A substitute teacher was arrested on Tuesday for having sex with a student.

Caddo Sheriff Steve Prator said Monica Michelle Martin, 27, of Oil City, was booked into the Caddo Correctional Center for prohibited sexual conduct between an educator and a student and contributing to the delinquency of a minor.

Martin is accused of having a sexual relationship with an 18-year-old student who she met while working as a substitute at North Caddo High School in Vivian. Their relationship started around March and continued until recently, said Sheriff's Detective Robert Greer, who investigated the case.

During the relationship, the two would meet at Martin's apartment, a Bossier City motel, and other locations. Martin also purchased the teenager a phone so they could communicate and paid a parking ticket issued to him.