Unlawful crossings at the U.S. southern border are down 94% from the same period last year, Border Patrol Chief Mike Banks told CBS News in his first sit-down interview, crediting the Trump administration’s government-wide crackdown on illegal immigration.

Over the past seven days, Banks said, Border Patrol agents have apprehended an average of 285 migrants per day along the entire southern border, compared to roughly 4,800 during the same time last year.

Banks attributed the dramatic drop in illegal immigration to a slew of executive actions taken by President Trump. They include an order that has effectively closed the U.S. asylum system and allowed for summary deportations, as well as the cancellation of Biden administration policies that allowed some migrants to enter the country with the government’s permission.

Formerly Texas’ border czar, Banks also cited the Trump administration’s deployment of additional troops to the southern border and a decision to deputize Texas National Guard soldiers as immigration officers, to help Border Patrol agents in the field.

Taken together, Banks said, the actions have virtually halted releases of migrants into the U.S. interior and sent a strong warning to those thinking about traveling to the American border that they will most likely be deported if they enter the country without permission.