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

The university received the notification "without warning," and that the federal government has not explained the reasons behind the visa terminations.

The Trump Administration revoked F-1 visas for five UC San Diego students "without warning," the university announced Friday. The big picture: The State Department has pulled hundreds of foreign student visas as the Trump administration pushes a sweeping immigration crackdown that's targeting college campuses.