Israel identified the two hostages returned from Gaza through the Red Cross as an 85-year-old man taken by Hamas and an IDF reserve master sergeant.

Several top U.S. officials are in Israel to shore up the Gaza ceasefire and attempt to bring about a permanent end to the war. They acknowledge the next phase poses serious challenges.

Israel said it carried out air strikes on Gaza Oct. 19 after its troops were attacked, sending the ceasefire into uncertainty.

Israel has accused Hamas of attacking Israeli forces in southern Gaza with the military carrying out airstrikes in the city of Rafah, the first major test of the US-brokered ceasefire.

The U.S. and Israel are considering a plan that would divide Gaza into separate zones controlled by Israel and Hamas, with reconstruction only taking place on the Israeli side.

An Israeli security official said the transfer of aid into the territory is halted "until further notice," the first major test of the ceasefire.

The cease-fire between Israel and Hamas, which took hold on Oct. 10, remains in place as of Wednesday afternoon, local time, despite reports of clashes in Gaza and accusations of violations from both sides.

Vance also cautioned that “there is currently no existing security infrastructure to guarantee Hamas’s disarmament. ” The ceasefire between Israel and Hamas is not in danger of collapsing, US President Donald Trump told reporters on Monday,