Parents expressed their frustrations with the Clayton School Board on Wednesday night over anti-Semitic comments made on social media by students at Clayton High School.

A group of students have been disciplined in connection to the Instagram post with the offensive content, officials said.

Clayton High School Principal Dan Gutchewsky sent a letter about the incident to parents last weekend. The district isn’t divulging the details of the comments made on the Instagram post but said the students had been disciplined. The details of the disciplinary action is confidential.

The parent of one Clayton High senior said she was worried about the implications of the incident.

“As a citizen, I’m worried. I’m worried that nobody is safe,” Kara Turner Newark said, adding that she worried about other religious groups, women and people of color being targets of similar acts.

Newark said she knew the students involved in posting the content that started the uproar and was surprised by their actions.