The Catholic school in Kentucky whose students faced off with a Native American elder in a video that went viral was closed Tuesday amid security concerns — while protesters gathered outside the diocese in Covington, according to reports.

“After meeting with local authorities, we have made the decision to cancel school and be closed on Tuesday, January 22, in order to ensure the safety of our students, faculty and staff,” Principal Robert Rowe said in a statement posted on Cincinnati’s WKRC-TV.

“All activities on campus will be canceled for the entire day and evening. Students, parents, faculty and staff are not to be on campus for any reason,” he added.