As countless asylum hearing appointments were canceled Monday, those who had already trekked across the McAllen-Hidalgo International Bridge on the day Trump was inaugurated underwent three-hours of processing before making their their way to shelters and other temporary housing.

President Donald Trump on Monday officially shut down the Customs and Border Protection-run app designed to help schedule appointments for people seeking eligibility for asylum, closing off a pathway for migrants at the Southern border hoping to enter the United States.

CBP One, a border app that has allowed nearly 1 million people to legally enter the United States with eligibility to work, was abruptly shut down on Monday, shortly after President-elect Donald Trump took office.