The United States has slashed its multi-year aid contracts by 92 percent, as it sought around US$60 billion in savings in development and overseas humanitarian programmes, the State Department said on Wednesday.

President Donald Trump signed an executive order on his first day in office, demanding a 90-day freeze on all US foreign aid to give his administration time to review overseas spending, with an eye to gutting programmes not aligned with his "America First" agenda.

A federal judge had given the Trump administration on Tuesday less than two days to unfreeze all aid after a previous court order issued nearly two weeks earlier went ignored.

But the Trump administration filed an emergency petition to the US Supreme Court, which issued an administrative stay late on Wednesday, pausing the lower court's order.

"At the conclusion of a process led by USAID leadership, including tranches personally reviewed by Secretary (Marco) Rubio, nearly 5,800 awards with US$54 billion in value remaining were identified for elimination as part of the America First agenda – a 92 percent reduction," a State Department spokesperson said in a statement.

The administration's review in part targeted multi-year foreign assistance contracts awarded by the US Agency for International Development (USAID), with the vast majority eliminated during its course.

It also looked at more than 9,100 grants involving foreign assistance, valued at more than US$15.9 billion.

Following the review, 4,100 grants worth almost US$4.4 billion were targeted to be eliminated, a 28 percent reduction.

"These commonsense eliminations will allow the bureaus, along with their contracting and grants officers, to focus on remaining programmes, find additional efficiencies and tailor subsequent programmes more closely to the Administration's America First priorities," the State Department statement said.

USAID distributes US humanitarian aid around the world, with health and emergency programmes in around 120 countries.

Programmes that were not cut included food assistance, life-saving medical treatments for diseases like HIV and malaria, and support for countries including Haiti, Cuba, Venezuela and Lebanon, among others, the State Department spokesperson said. (AFP)