The U.S. Department of Homeland Security has confirmed that President Donald Trump’s decision to block immigration from so-called “third-world countries” covers 19 nations on existing travel-ban lists.

The countries are: Libya, Sudan, Yemen, Somalia, Iran, Afghanistan, Myanmar, Burundi, Chad, Cuba, Democratic Republic of the Congo, Equatorial Guinea, Eritrea, Haiti, Laos, Sierra Leone, Togo, Turkmenistan, and Venezuela.

The announcement followed a shooting near the White House carried out by an Afghan national, which killed a security guard.

Trump said on Truth Social that the ban will be permanent, prompting widespread debate over discrimination, foreign relations, and U.S. immigration policy.