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

The US-Mexico border is effectively closed off to migrants seeking asylum in the United States within hours of President Donald Trump taking office, an extraordinary departure from previous protocols that has left many concerned migrants in limbo.

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.

Migrants who waited months to cross the U.S. border with Mexico learned their CBP One appointments had been canceled moments after Donald Trump was sworn in as president.

SAN DIEGO — Migrants waiting to enter the US using former Joe Biden’s CBP One app broke down in tears after their appointments were canceled the moment President Trump took office Monday – just the first of the sweeping border actions the new administration prepared for the first day.

President Donald Trump's promises of mass deportations, which could bring batches of new arrivals fresh off the border bridges into Juárez, has Mexican law enforcement preparing to keep watch for potential trouble.

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".

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.

A secret tunnel discovered last week on the U.S.-Mexico border will be sealed by Mexican authorities, an army official in Ciudad Juarez said Saturday.

CBP One has been wildly popular, especially with Venezuelans, Cubans, Haitians and Mexicans. Now, they were stranded at the U.S. border or deeper in Mexico.

Migrants, activists, and religious organizations remained on high alert on Friday at one of the main border crossings between Mexico and the United States in Ciudad Juárez, as Donald Trump prepares to take office again on Jan.

Data shows birthright citizenship hasn't changed much since 2000 as Trump wants to end it for children of illegal immigrants.