A former Alief ISD high school teacher is accused of having sex with a 15-year-old female student.

Ricardo Rangel is charged with improper relationship with a student and sexual assault of a child. Court documents state on Jan. 10, 2013, Rangel picked up the 15-year-old female victim from her residence and took her to his residence. The girl told police they were on his bed watching a movie when Rangel suddenly got on top of her and they had sex.

According to court documents, the girl says she had a sexual relationship with Rangel until June 2013.

Court documents show Rangel, 26, was employed as a math teacher at Alief Elsik High School from August 2012 until he resigned on Jan. 31, 2013.

Rangel has not yet been arrested.