Eight felony charges were filed Friday against a California City High School teacher accused of engaging in sex acts with and sending nude photos of herself to students.

The charges against 36-year-old Amber Lee Failla include unlawful sexual intercourse, oral copulation with minors and contacting a minor with the intent to commit a sexual offense, according to Kern County Superior Court records.

Failla was arrested July 27 at her home in Tehachapi and is free after posting bond. A court hearing has not yet been scheduled.

California City police said their investigation into Failla began when school officials heard about "alleged sexual misconduct" involving a teacher. Three male students, ranging in age from 14 to 17 years old, reported to police Failla had sexual encounters with them and "sexted" them nude photos, the department reported.

The students told investigators Failla would text them at different times to meet in her classroom when there was no class in session and engage in sex acts with, according to police. Police have seized computers and several cell phones from Failla's home.