A small group of students at Arizona State University marched through campus Thursday morning in protest after learning that eight students reportedly had their student visas revoked. No one in the group said they knew who the students were or why their visas were pulled.

ASU confirmed visa revocations for 8 international students due to legal infractions, sparking protests and calls for a sanctuary campus.

Amid nationwide deportation crackdown, eight Arizona State University students may be forced to leave the U.S. after their visas were revoked.