US arrests, deports hundreds of 'Illegal Immigrants': Trump press Chief

US authorities arrested 538 illegal migrants and deported hundreds in a mass operation just days into President Donald Trump's second administration, his press secretary said late Thursday.

"The Trump Administration arrested 538 illegal immigrant criminals," Karoline Leavitt said in a post on social platform X, adding "hundreds" were deported by military aircraft.

"The largest massive deportation operation in history is well underway. Promises made. Promises kept," she said.

Trump promised a crackdown on illegal immigration during the election campaign and began his second term with a flurry of executive actions aimed at overhauling entry to the United States.