The Trump administration has halted all immigration applications filed by people from 19 countries, its latest move to restrict legal immigration pathways following the shooting of two National Guard members in Washington, D.C., last week, according to internal government guidance and a source familiar with the move.

The internal U.S. Citizenship and Immigration Services guidance obtained by CBS News shows the agency directed employees on Monday to "stop final adjudication on all cases" involving individuals from 19 nations that are facing restrictions under a proclamation Mr. Trump issued in June. Colloquially, that proclamation is known as the travel ban.

That pause includes the completion of citizenship ceremonies for legal U.S. permanent residents from the list of 19 countries who we

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