Yaakub Vijandre was preparing to go to work as a mechanic when six vehicles appeared outside his Dallas-area home. Federal agents jumped out, one pointed a weapon at him, and they took him into custody.

Vijandre is a recipient of Deferred Action for Childhood Arrivals, the Obama-era program that has shielded hundreds of thousands of people from deportation since 2012 if they were brought to the United States as children and generally stayed out of trouble. The Trump administration said it targeted Vijandre over social media posts. The freelance videographer and pro-Palestinian activist described his early October arrest to his attorneys, who relayed the information to reporters.

His arrest and several others this year signal a change in how the U.S. is handling DACA recipients as Donald Trump’s administration reshapes immigration policy more broadly. The change comes as immigrants have face increased vetting, including of their social media, when they apply for visas, green cards, citizenship, or to request the release of their children from federal custody. The administration also has sought to deport foreign students for participating in pro-Palestinian activism.