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

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.

The migrants at El Buen Samaritano shelter had waited months to enter the United States through the CBP One app. Now they are stuck in Mexico.

Ahead of the inauguration, migrant shelters south of the Rio Grande are far from full, a reflection of the tougher measures imposed on both sides of the 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.

ATOTONILCO DE TULA, Mexico — When Dayana Castro heard that the U.S. asylum appointment she waited over a year for was canceled in an instant, she had no doubt: She was heading north any way she could.

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

This gallery highlights some of the most compelling images made or published in the past week by The Associated Press from Latin America and the Caribbean. The selection was curated by AP photographer Esteban Félix,

Migrants allowed into the U.S. temporarily under certain Biden administration programs can be quickly expelled, according to a memo sent by the Trump administration's acting secretary of homeland security.

Mexican authorities are building temporary shelters in Ciudad Juarez and other cities to prepare to receive nationals deported from the U.S. by President Donald Trump.

Catholic advocacy groups, southern border dioceses and the U.S. bishops' conference are expressing deep concern after President Trump signed a series of executive orders targeting immigration on his first week in the Oval Office.