At least 18 international students and recent graduates at the University of Utah have had their visas revoked — receiving letters from President Donald Trump’s administration instructing them to immediately “self-deport.

An international student at the University of Iowa had their visa revoked, according to an email sent to members of the campus community.

The ACLU of Michigan announced Thursday it had filed a federal lawsuit on behalf of four international students attending Michigan schools whose student visa status was revoked. The lawsuit includes a request for an emergency injunction;