Nigeria, Nov. 28 -- US President Donald Trump says he plans to suspend immigration from "all Third World countries" due to what he claims is the strain that current migrant arrivals are placing on the United States.

His declaration is the latest move in a broader government clampdown on immigration, marked by steadily tightening restrictions.

In a statement shared on Truth Social on Friday, Mr Trump portrayed the US as in decline due to uncontrolled migration.

He stated that millions of foreign-born residents rely on public assistance and that many new arrivals come from prisons, gangs, or "failed nations".

This statement comes a day after an Afghan national was named as a suspect in the shooting of two members of the National Guard i...