Officials inside and outside of the US government are grappling with the fallout of the Trump administration’s sudden suspension of almost all foreign aid with some humanitarian officials warning that people will die as a result.

Secretary of State Marco Rubio backtracked on Trump’s near-total foreign aid freeze and approved potentially billions of dollars in “life-saving humanitarian assistance.” Many aid groups are still unsure what that means.

The Trump administration’s orders have sent a chill through humanitarian organizations in Ukraine, which depend heavily on such assistance.

The suspension affects humanitarian programs, counterterrorism efforts and weapons financing.

A U.S.-funded organization to help war veterans is one of many organizations that have abruptly lost funding and can no longer carry out their work.