The announcement comes a day after an attack on National Guard troops near the White House. Authorities have identified the suspect as an Afghan national.

In a social media post, President Trump wrote that he "will permanently pause migration from all Third World Countries to allow the U.S. system to fully recover."

Iranian studies professor Vahid Abedini opened up about the 'deeply distressing experience' of being detained by US immigration authorities over the weekend.

Singaporean child sex offender Amos Yee is now in the custody of the US Immigration and Customs Enforcement (ICE), with the 27-year-old likely to face deportation.

The agency patrols 6,000 miles of international border between the United States, Mexico and Canada. It also watches over the 2,000 miles of coastal waters surrounding the Florida Peninsula and the Island of Puerto Rico, according to the U.S. Customs and Border Protection website.