Officials had largely steered clear of arrests at immigration courts out of concern that they would deter people from showing up for hearings.

A spate of arrests at immigration courts across the United States this week has rattled people showing up for hearings and may signal a coordinated attempt at deportations under fast-track authority that President Donald Trump sharply expanded soon after taking office.

A delivery man who came to the United States seeking asylum was apprehended by federal agents at a courtroom in downtown Miami. Miguel Jerez-Robles, 26, was detained by immigration authorities moments after his case was dismissed at the Miami Immigration Court on May 22.