White House Press Secretary Karoline Leavitt said Tuesday the first flights of undocumented immigrants from the U.S. to Guantánamo Bay in Cuba were underway—following an escalation of arrests across the country as part of what President Donald Trump has promised would be the “largest deportation operation” in U.S. history.

The Pentagon signaled earlier this week that Air Force C-17s could be used to fly deportation flights. That's happening now.

The White House has confirmed the arrival of the first deportation flights from the U.S. at Guantanamo Bay. The plan calls for as many as 30,000 people to be sent there. CBS News Pentagon reporter Eleanor Watson has more.

The Trump administration has started flying immigrants who entered the U.S. illegally out of the country using military aircraft, a White House spokesperson said Friday. White House press

The Trump administration started sending migrants to the U.S. naval base in Guantanamo, Cuba, on Tuesday as part of a crackdown on undocumented immigration, the White House said.

The first military flights to deport migrants from the United States to Naval Base Guantanamo Bay were slated to take off Tuesday.