Jose Valero, 39, has been arrested on a charge of aggravated sexual assault of a child, after a 13-year-old girl made an outcry to a middle school classmate, an arrest warrant affidavit stated.

Valero was taken into custody Friday.

The affidavit stated that a 13-year-old confided in another student at her middle school that Valero had been sexually assaulting her.

The classmate then told a school counselor, who called the Bexar County Sheriff’s Office last Thursday, the affidavit stated.

The girl told investigators Valero began having sex with her in January, and had sexually assaulted her as recently as last Wednesday night.

The affidavit stated that the girl told detectives she had complained to her mother in the past, but her mother did not believe her and told her never to mention it again.