Afghanistan, Nov. 28 -- U.S. President Donald Trump says he will permanently stop immigration from "third-world" countries, unveiling plans for a sweeping overhaul of America's current migration system.

U.S. President Donald Trump says he intends to permanently block immigration from what he calls "third-world countries," outlining a plan for a fundamental overhaul of America's migration system.

Trump said in a post on Truth Social that the United States would no longer accept migrants from low-income nations, framing the proposal as part of his effort to "rebuild the American system." He argued that recent migration waves had weakened U.S. technological progress and strained living standards.

Announcing a broad rollback of admissions, T...