President Donald Trump said he will “permanently pause migration” from some countries following the shooting of two National Guard members in Washington, D.C., earlier this week.

In a post on his social media platform late Thursday, Trump did not specify which countries the pause would affect, saying it would apply to “Third World Countries.”

In June, Trump issued a proclamation banning travel to the U.S. from 12 countries, mostly in Africa and the Middle East, and imposing travel restrictions on several others.

In the post on Thursday, Trump also listed a number of actions he said the U.S. would take, though it’s not yet clear how the Trump administration plans to accomplish them.

He said the U.S. would “terminate all of the millions of Biden illegal admissions, including those signed by Sleepy Joe Biden’s Autopen, and remove anyone who is not a net asset to the United States, or is incapable of loving our Country, end all Federal benefits and subsidies to noncitizens of our Country, denaturalize migrants who undermine domestic tranquility, and deport any Foreign National who is a public charge, security risk, or non-compatible with Western Civilization.”

The suspect in Wednesday’s shooting, which claimed the life of one National Guard member and left the other in critical condition, is 29-year-old Rahmanullah Lakanwal.

Officials say Lakanwal came to the U.S. in 2021 during the Biden administration. He was granted asylum in April 2025 under Trump, according to multiple law enforcement sources.

In Afghanistan, the suspect was involved with the Zero Unit, working closely with the CIA and the Joint Special Operations Command, according to sources familiar with the investigation. The suspect was a trusted member of that team, which went after U.S. counterterrorism targets, according to sources.

Trump has vowed an immigration crackdown following the shooting, saying Wednesday the attack “underscores the greatest national security threat facing our nation.”

In the past, Democrats and immigration advocates have pushed back against the president’s immigration restrictions, including on asylum seekers, contending that he has exaggerated national security concerns and turned away millions of families in need.

Trump ordered National Guard troops to Washington this summer. He has also ordered members of the National Guard to other Democrat-led cities such as Chicago and Portland, Oregon.