The Department of Homeland Security said Thursday that it has begun notifying hundreds of thousands of Cubans, Haitians, Nicaraguans and Venezuelans that their temporary permission to live and work in the United States has been revoked and that they should leave the country.

The Department of Homeland Security on Thursday told hundreds of thousands of migrants that their permission to live and work in the United States had been revoked and they should leave the country, according to a copy of the notice obtained by CNN.

The proclamation issued by President Trump on June 4, imposes a travel ban that restricts the entry of foreign nationals, either fully or partially, to the U.S. from a specific set of countries. From Latin America and the Caribbean there are three countries included in the travel ban: Haiti,