Five students, "without warning," Chancellor Pradeep K. Khosla said in a notice sent Friday, had their F-1 visas terminated the day before.

Five UC San Diego students had their F-1 visas terminated "without warning" the school, according to a campus notice sent out Friday by Chancellor Pradeep Khosla.

Six international students at UC San Diego have had their F-1 visas terminated without warning, and the State Department has revoked 300 or more student visas, raising concerns about the impact on international students.