A 13-year-old girl was charged Tuesday after she added a foreign substance to a teacher's water bottle at Nandua Middle School in Onley, police said.
The Accomack County Sheriff's Office was notified of the incident May 13, when the teacher became ill after drinking water from a container she had left unattended in her classroom.
The sheriff's office did not identify the teacher or the student.
The teacher was transported by personal vehicle to Riverside Shore Memorial Hospital, where she was treated and later released, according to Sheriff Todd Godwin.
The girl was identified after an investigation, charged and transported to the Norfolk Juvenile Detention Center on May 20. She was charged with adulteration of food, drink, drugs, cosmetics, police said.
Accomack County Interim School Superintendent Rhonda Hall said the incident is under investigation but declined to give details about what happened.
"There was an incident that is under investigation. ... The matter is a student matter and I cannot discuss it publicly," Hall said, adding, "If any situation comes up that jeopardizes the safety of a staff member or a student, we investigate it thoroughly."