Several migrants said they had recently arrived in Ciudad Juarez, Mexico after weeks of travel, only to find their CBP One appointments were cancelled.

Mayor Cruz Perez Cuellar of Ciudad Juarez expressed readiness to handle a potential influx of migrants as U.S. policies under President Donald Trump

The CBP One app has been highly popular, functioning as an online lottery system that grants appointments to 1,450 people daily at eight border crossings. These individuals enter the U.S. under immigration "parole," a presidential authority that Joe Biden has exercised more frequently than any other president since its creation in 1952.

Mexico’s government has been creating shelters fit for 2,500 people each to take back deportees from the US. Several organisations said the system was unusually efficient so far, but that there was no clear additional plan for the estimated 380,000 Mexicans displaced internally by violence or the hundreds of thousands of foreigners now stuck.

The Trump administration has ended use of the border app called CBP One that allowed nearly 1 million people to legally enter the United States.

CIUDAD JUÁREZ, Mexico — Ridel Jiménez arrived ... City for their appointment with U.S. immigration officials through CBP One, the mobile app that the Biden administration launched and that ...

Hours after Trump’s inauguration, his administration canceled appointments allowing migrants to enter the U.S. to request asylum, leaving many of them stranded on the U.S.-Mexico border.

President Trump took action to close the nation’s southern border and terminate a widely used app. Many migrants expressed despair, and some moved to cross the border anyway.

Migrants in Mexico who were hoping to come to the U.S. are adjusting to a new and uncertain reality after President Donald Trump began cracking down on border security.

Cabrera is one of several migrants CNN spoke to who recently arrived in Ciudad Juarez after weeks of travel for their CBP One appointments, only to find the sessions they had been given were canceled.

Several migrants in Ciudad Juarez, Mexico, near the U.S. border cried in frustration as their CBP One app appointments were canceled after Donald Trump took office. Venezuelan migrant Jhony Flores says it felt unfair that an opportunity for legal passage was taken away after people spent so much time waiting in Mexico.

General Jose Lemus, commander of Ciudad Juarez's military garrison, said the tunnel "must have taken a long time" to build, suggesting "it could have been one or two years".