Around noon Monday, the sidewalk outside the building was cordoned off as two people arrived wearing what appeared to be white Hazmat suits. Victor Pulla works in a parking garage across the street from the building and described hearing what sounded like gunshots during the incident. After they emerged, Pulla said he watched federal agents take a man away in handcuffs. Mayor Zohran Mamdani said on X that what happened outside 26 Federal Plaza “was deeply disturbing.” My team is in touch with the NYPD and we will support the federal investigation,” he said.