A San Antonio High School teacher suspected of having an ongoing relationship with a student was arrested on Monday, April 20.

Eva Fernandez—also known as Ms. Ambriz to her students—was taken into custody and booked at Claremont jail for child annoying, a misdemeanor. The 27-year-old El Monte resident was later released on $20,000 bond with a notice to appear in court. Police began collecting evidence and witness statements after a school administrator alerted police of a possible relationship between the two. Neither the alleged 17-year-old male victim nor the first-year science teacher has been forthcoming with information.

The investigation remains ongoing and Ms. Ambriz has been placed on paid administrative leave by the Claremont Unified School District until further notice.