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

EL PAÍS shares the stories of some of the thousands of migrants left stranded in Mexico after the Trump administration shut down the CBP One application

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.

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.

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 ...

The temporary shelters in Ciudad Juarez will have the capacity to house thousands of people and should be ready in a matter of days, said municipal

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.

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.

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.

The Trump administration has shut down the CBP One app for migrants. The Biden-era process allowed nearly 1 million migrants to enter the US at legal border crossings. We reported that an estimated 270,000 migrants are waiting in Mexico, hoping to use the app to enter the US. https://t.co/pIKlzjspjA pic.twitter.com/8Cpv1IcLhj

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".