U.S. Border Patrol agents took three people into custody from a car parked at Grape Street Dog Park in Balboa Park early Monday morning, according to U.S. Customs and Border Protection.

After two months of raids that netted thousands of arrests but also sparked outrage and resistance, a surge of federal immigration agents that came to the city as part of the Trump administration’s Operation Midway Blitz may soon leave Chicago as the controversial mission winds down,

Homeland Security said it was “surging resources” for “Operation Charlotte’s Web” but didn’t say how long agents would remain in Charlotte.