The UN agency for Palestinian refugees fired a number of its staffers in Gaza suspected of taking part in the October 7 attack by Hamas and other militants on southern Israel, its director said Friday, prompting the United States—the agency’s biggest donor—to temporarily halt its funding.

The agency, known by its acronym UNRWA, has been the main agency providing aid for Gaza’s population amid the humanitarian disaster caused by Israel’s offensive against Hamas in Gaza triggered by the October 7 attack. UNRWA officials did not comment on the impact that the US halt in funding would have on its operations.