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.

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 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.

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

Word began to spread quickly in the Tijuana migrant shelter Monday, even as President Donald Trump continued to deliver his inauguration speech. Nidia Montenegro, an asylum seeker from Venezuela, checked her cellphone to see if the asylum screening appointment she’d waited so long to secure was still good for Wednesday morning.