Washington, D.C. — The United States has ordered hundreds of thousands of migrants who had been granted temporary residency under the Biden-era CBP One parole program to self-deport “immediately,” as the Trump administration accelerates its hardline immigration overhaul.

According to reports from U.S. media on Tuesday, formal termination notices have been issued to an undisclosed number of migrants who entered the country through the CBP One mobile app — a tool central to the humanitarian parole strategy implemented under President Joe Biden.

“Formal termination notices have been issued, and affected aliens are urged to voluntarily self-deport using the CBP Home App,” a senior Department of Homeland Security (DHS) spokesperson told AFP. “Those who refuse will be found, removed, and permanently barred from reentry.”

The controversial move comes just weeks after President Donald Trump, in his first days of a second term in office, shut down access to the CBP One app — effectively halting a key migration pathway that had allowed individuals in Mexico to schedule appointments at select U.S. border ports of entry to apply for temporary protection.

The new orders could affect more than 930,000 migrants, according to National Public Radio. Those affected were notified via email and informed that DHS was exercising its discretionary authority under U.S. immigration law to revoke their parole status.

Trump’s administration has made sweeping immigration enforcement a top priority since returning to power, with the president vowing to deport “millions” of undocumented migrants. In recent public appearances, he has defended the crackdown with inflammatory language, referring to migrants as “animals” and “monsters,” and linking them to violent crime.

“Canceling these paroles is a promise kept to the American people to secure our borders and protect national security,” the DHS spokesperson said.

The CBP One app, launched in January 2023, had been a cornerstone of Biden’s efforts to create a more orderly and humane immigration system. The app allowed migrants to legally approach border crossings and schedule appointments for asylum or parole screenings — a process intended to reduce irregular border crossings and humanitarian strain.

The decision to dismantle the program is the latest in a series of reversals of Biden-era immigration policies. Just last month, the Trump administration terminated the temporary legal status of 532,000 migrants from Cuba, Haiti, Nicaragua, and Venezuela, giving them only weeks to leave the country.

The wave of terminations and deportation orders has drawn concern from immigrant advocacy groups and legal experts, many of whom warn of potential humanitarian fallout and legal challenges in the weeks ahead.

As the Trump administration moves forward with its aggressive enforcement agenda, questions remain over how immigration courts, border agencies, and receiving countries will manage the scale and logistics of such mass removals.