The world is likely to see millions more malaria infections and 200,000 cases of paralytic polio each year, according to an agency whistle-blower.

"Going through with these cuts will make the world less healthy, less safe and less prosperous. The reduction of America’s humanitarian role and influence will run counter to American interests globally," Guterres said in a statement to reporters at the UN.

The Supreme Court on Wednesday temporarily blocked a judge’s order giving the Trump administration a midnight deadline to release billions of dollars in U.S. foreign aid.

Foreign aid organizations are in turmoil after the Trump administration cut several million dollars of funding and fired nearly 1,600 employees of the United States Agency for International Development.

JOHANNESBURG - Aid organisations across the globe continue to feel the wrath of the Trump administration's foreign aid cuts. WATCH: USAID cuts | Funding cuts could reverse 25 years of progress Apart from leaving HIV patients in dire straits,

The British minister responsible for international development has quit in the wake of Prime Minister Keir Starmer’s decision earlier this week to ramp up defense spending by slashing the foreign aid budget.

U.S. Agency for International Development workers were allowed to briefly reenter the headquarters in Washington on Thursday to collect their personal belongings and clear out their desks, a day after President Donald Trump's administration said it was cutting more than 90% of the agency's aid contracts.