A US government official has disclosed that the Trump administration has directed the US Citizenship and Immigration Services (USCIS) to suspend green card and citizenship applications filed by Nigerians and nationals of other countries newly added to the expanded US “travel ban.”

The official, speaking in a report by CBS News on Thursday, said the move is tied to national security concerns and an ongoing review of immigration vetting processes.

The development follows a proclamation signed by President Donald Trump on Tuesday, which further restricts entry into the United States for nationals from countries deemed high‑risk.

The proclamation cited “demonstrated, persistent, and severe deficiencies in screening, vetting, and information‑sharing” that it says pose a threat to US national security and public safety.

Among the 15 additional countries newly subjected to partial restrictions under the expanded travel ban is Nigeria.

Trump had previously, on October 31, labelled Nigeria a “country of particular concern” following allegations of Christian genocide in the country.

Below is the full list of countries revealed to be affected by the suspension of green card and citizenship applications:

Burkina Faso

Mali

Niger

South Sudan

Syria

Laos

Sierra Leone

Angola

Antigua and Barbuda