The United States government has issued a stern warning to Nigerian nationals, cautioning that overstaying a U.S. visa could result in deportation and potentially a permanent ban from entering the country.

This warning follows a series of new visa restrictions and immigration measures recently introduced under President Donald Trump’s administration. The U.S. Mission in Nigeria communicated the warning in a post shared via its official X (formerly Twitter) account.

“If you remain in the United States beyond your authorized period of stay, you could be deported and could face a permanent ban on travelling to the United States in the future,” the statement read.

Earlier last week, the U.S. revised its visa reciprocity policy for Nigerians, limiting non-immigrant and non-diplomatic visas to single-entry, three-month durations. The update cited reasons including reciprocal treatment, visa overstays, national security concerns, and fraudulent documentation.

In addition to these changes, the U.S. also introduced a mandatory $250 Visa Integrity Fee for student, work, and tourist visas. The new policy also imposes several non-waivable travel-related surcharges, such as a $24 I-94 fee and a $13 Electronic System for Travel Authorization (ESTA) fee for travelers using the Visa Waiver Program.

The surcharges will apply to multiple visa categories, including B-1/B-2 (business/tourist), F and M (students), H-1B (workers), and J (exchange visitors). Only diplomatic applicants under categories A and G are exempt from the new charges.

The visa curbs come shortly after another major policy shift requiring social media screening for student visa applicants. Applicants for F, M, and J visas must now list all their social media handles and set their accounts to public for vetting purposes.

“Every visa adjudication is a national security decision,” the U.S. Embassy stated. “Effective immediately, all individuals applying for F, M, or J non-immigrant visas are requested to adjust the privacy settings on all of their personal social media accounts to ‘public’ to facilitate identity and admissibility verification.”

Since assuming office, President Trump has pursued aggressive immigration enforcement policies. His administration has prioritized the removal of undocumented immigrants and enhanced vetting of visa applicants to prevent individuals perceived as security risks from entering or remaining in the U.S.