A teacher at Roberto Clemente Leadership Academy, a K-8 school in New Haven, has been placed on administrative leave after she allegedly grabbed a third-grade student by the neck.

The teacher has been banned from campus during her leave and the victim’s family intends to file a lawsuit, the New Haven Register reported Tuesday.

Shamara Miller, the boy’s mother, told the Register that while serving an in-school suspension with another student May 20, her son got into a verbal altercation with the teacher, who Miller said is not her son’s usual instructor. After the student — who felt singled out, according to his mother — got up to go to the principal’s office, the teacher grabbed him by the neck and took him out of the room, where she slammed him against a locker, Miller said.

School surveillance cameras captured the incident, Miller said, and a member of the school district showed the footage to her.

Miller said her son will not be returning to Clemente in the fall. The district will work with the family on a future school placement, Superintendent Garth Harries said in a statement Wednesday.

Miller, who has retained a lawyer, told the Register that she attempted to file charges against the teacher in June. The Board of Education has not named the teacher and the district declined to release her name.

On Wednesday, the New Haven Police Department confirmed with the Register that there is an ongoing criminal investigation related to the alleged incident.

Harries emphasized the district’s commitment to creating a safe learning environment for its students and said officials expect all educators to “exhibit a reasonable amount of self-restraint while deescalating incidents of behavioral aggression.”