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.

Just as Donald Trump's inauguration concluded, Honduran asylum seeker Denia Mendez's phone buzzed with alarming news: the CBP One app, her lifeline to a new life in the US, was down.

CBP One was used by the Biden administration to allow hundreds of thousands of migrants into the country to pursue asylum claims.

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.

The CBP One app has been wildly popular. It is an online lottery system to give appointments to 1,450 people a day at eight border crossings.

Existing appointments scheduled through CBP One are no longer valid,” the alert read. In a move fulfilling one of now-President Donald Trump’s campaign promises, the Trump administration shuttered the use of CBP One,

On the day of President Donald Trump's inauguration, the government application CBP One, which migrants used to submit a legal visa application, ceased functioning. The CBP One application was introduced by Joe Biden's administration to reduce illegal crossings of the Mexico-US border.