The Oct. 7 cross-border attack led by Hamas killed some 1,200 people, mostly civilians, and took around 250 others hostage. More than 100 were freed in a weeklong truce the following month. Israel believes at least a third of the over 90 captives still in Gaza are dead.

Palestinian militants and Israel carried out a hostage-prisoner swap on Saturday under a Gaza ceasefire deal, but a last-minute dispute blocked the expected return of hundreds of thousands of Palestin