The Donald Trump administration has officially suspended all immigration applications, including green cards and U.S. citizenship processes, from 19 non-European countries, citing national security and public safety concerns.

The policy freeze affects nations previously hit by a partial travel ban: among them are Afghanistan, Somalia, Iran, Yemen, Libya, Sudan, and others.

According to the new directive from the U.S. Citizenship and Immigration Services (USCIS), pending applications will be re-reviewed — possibly requiring new interviews and additional vetting.

The decision follows a deadly shooting in Washington, D.C., involving an Afghan national, which prompted the administration to tighten immigration scrutiny.

The freeze has caused uncertainty for thousands of applicants from affected countries, including those already in the final stages of immigration processing. Citizens awaiting green cards, naturalization, or asylum decisions now face indefinite delays.