A teacher at Mount Carmel High School in San Diego was arrested this week for an alleged years-long sexual relationship with a female student, according to the San Diego Police Department.

Stacy Michelle Walker, 40, was arrested March 19 on suspicion of 17 felony counts including oral copulation of a minor, sexual penetration of a minor with a foreign object, sodomy, and luring a minor for sexual purposes, according to police. She was booked into Las Colinas women’s jail in Santee, about 20 miles northeast of San Diego.

The alleged victim reported the sexual assaults in July 2023, which have been under investigation since, according to San Diego Police Department Lt. Dan Sayasane.

Police said the assaults began when the victim was 15 and continued until after she turned 18. They allegedly began with sexual conversations, then text messages, and eventually exchanging of explicit pictures and videos before in-person sexual acts.

Lt. Sayasane didn’t specify where the acts took place but instead said “various locations.”

Ms. Walker is currently being held on $405,000 bail with an arraignment hearing scheduled for Friday.

She is the second San Diego educator arrested this week for sexual allegations with minors.

On Wednesday, 41-year-old Charles Thomas Boyd De Freitas, an associate principal at Hoover High School in the San Diego neighborhood of City Heights, was arrested on suspicion of distributing and possessing child pornography, according to police.

City News Service contributed to this report.