Officials at the University of California in Berkeley on Tuesday confirmed that 13 additional members of the campus community have had "their visas terminated and non-immigrant status revoked by the federal government.

Colleges and universities across the country say the visas of some international students have been revoked in recent days without notice, causing confusion on campuses and panic among students, some of whom have filed lawsuits.

The University of Washington plans to provide the affected students access to legal services that are paid for by their student fees.