President Donald Trump threatened Tuesday to hold up U.S. aid to Honduras and other unspecified countries unless a group of people seeking refuge in the U.S. is stopped.

Axar.az reports citing AFP.

"The big Caravan of People from Honduras, now coming to Mexico and heading to our 'Weak Laws' Border, had better be stopped before it gets there," Trump tweeted. "Cash cow NAFTA is in play, as is a foreign aid to Honduras and the countries that allow this to happen. Congress MUST ACT NOW!"

Trump has previously threatened Mexico over the free trade deal with the U.S. and Canada, but his latest explicit warning to Honduras is a new tact for the American president as he seeks to stymy a large group of more than 1,200 people -- most of whom are from Honduras -- who will either apply for asylum at the U.S. border or attempt to sneak across it.

The U.S. provided Honduras with $151 million in fiscal year 2017, according to the U.S. Agency for International Development, and has spent just less than $18 million in the current fiscal year that ends in September.

The Twitter threat is the latest as Trump continues to rail against immigration after being criticized from his conservative base that he has yet to follow through on an immigration crackdown he promised during his run for the White House.

Trump on Monday declared dead an Obama-era program of protections for hundreds of thousands of people brought to the U.S. illegally as children. Trump ended the program last year, but called on Congress to come up with a legislative fix in exchange for a raft of hardline immigration policies Trump has been seeking.

But a March deadline came and went for the Deferred Action for Childhood Arrivals (DACA) program after successive federal courts ruled that the legal justification the administration had sought to end the program was on flimsy grounds, and ordered authorities to continue processing renewals for the program as litigation continues.