The State Department approved the transfer of more than 1,000 MK82 500-pound bombs, over 1,000 small-diameter bombs, and fuses for MK80 bombs, all from authorizations granted by Congress several years before the latest hostilities between Israel and Hamas began, said the U.S. officials, who like others spoke on the condition of anonymity to discuss sensitive arms deals.

Officials have not publicly disclosed what type of munition struck the aid truck, but the small-diameter bombs the United States has provided to Israel are “certainly comparable,” said Josh Paul, a former State Department arms expert who resigned in protest of the administration’s Gaza policy.