Nude photos, generated by artificial intelligence, have caused an uproar after they circulated two weeks ago through Westfield High School in Union County.

The photos, shared in a group chat by a group of boys, depicted girls at the school, according to a story by the Wall Street Journal.

“This is a very serious incident,” Principal Mary Asfendis wrote in an email to parents. “New technologies have made it possible to falsify images and students need to know the impact and damage those actions can cause to others.”

The school is committed to educating students on AI. Meanwhile, the Westfield police are investigating what happened.

Sophomore boys at the school were acting strangely on Oct. 16, one mother told WSJ. Several days later, one of the boys confessed that at least one student had used an AI website to create pornographic images using girls’ photos found online. It was reported to the school.

Some parents said their daughters have felt “humiliated and powerless,” and worry about long-term damage if the images resurface.

New Jersey state Sen. Jon Bramnick is studying what state laws exist or could be created to criminalize AI photo generation like this.