Hamas has agreed to proceed with handing over four more dead hostages in exchange for Israel releasing hundreds of Palestinian prisoners, Egyptian officials said, potentially resolving a dispute that threatened to derail the current cease-fire in Gaza.

Hamas said it handed over four hostages to Israel in a display a senior U.N. official called “abhorrent and cruel.” Israel later said only three bodies belonged to captives.

Latest news as six hostages were released as part of the Israel-Hamas ceasefire deal but Palestinian detainees and prisoners were not.