The admissions come amid widespread concern about a humanitarian crisis in Gaza after nearly two years of war that began when Hamas attacked Israel from the enclave. President Donald Trump has lamented the conditions and called on Israel to improve aid while also backing Israel’s plan to widen its military operation in the enclave.

The move comes after conservative activist Laura Loomer, an advisor to President Trump, complained on social media about children from Gaza arriving in the U.S. for medical treatment and questioned how they got visas.

The move comes after far-right activist Laura Loomer drew attention to a video posted by the nonprofit HEAL Palestine and called the visas a “national security threat.”