The U.S. paused a shipment of bombs to Israel last week over concerns that Israel was approaching a decision on launching a full-scale assault on the southern Gaza city of Rafah against the wishes of the U.S., a senior administration official said Tuesday. More than 1 million civilians are sheltering in Rafah after evacuating other parts of Gaza amid Israel's war on Hamas, which came after the militant group's deadly attack on Israel on Oct. 7. President Joe Biden's administration in April began reviewing future transfers of military assistance to Israel as Prime Minister Benjamin Netanyahu's government appeared to move closer toward an invasion of Rafah, despite months of opposition from the White House.