Karoline Leavitt announces first migrant flights to Guantanamo Bay officially 'underway'
Stuart Varney and Karoline Leavitt (Fox Business Screen grab)

White House Press Secretary Karoline Leavitt announced Tuesday that the first flights carrying migrants to be housed at Guantanamo Bay were officially "underway."

During an interview on Fox Business, Leavitt insisted that President Donald Trump was not "messing around" with his plan to eradicate migrants from the United States.

"He's no longer going to allow America to be a dumping ground for illegal criminals from nations all over this world," she told Fox Business host Stuart Varney.

"Venezuela as well has agreed to repatriation flights and Colombia also agreed to cooperate with the repatriation of illegal Colombian nationals that we have found in the interior of our country," she added. "And I can also confirm that today the first flights from the United States to Guantanamo Bay with illegal migrants are underway."

At a ceremony last week, Trump first announced a plan to send immigrants and migrants who were in the country illegally to a detention center at Guantanamo Bay.

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Leavitt also threatened to prosecute New Jersey Gov. Phil Murphy (D) if he was found to be housing an undocumented immigrant in his home. The governor recently walked back claims that he had invited an immigrant to live with him.

"I will say that this administration will hold Democrat governors and leaders across the country accountable if they break the law, if they harbor illegal aliens, or if they are not abiding by the federal immigration laws," Leavitt warned.

Watch the video below from Fox Business.