Israel and Hamas reached a deal to resolve a disagreement over the exchange of a female civilian hostage that had threatened to derail the truce. Lebanon, however, saw the deadliest day since Israel’s truce with Hezbollah took effect.

Israeli troops pull back but maintain a watchful eye on the tens of thousands of Gazans who had been displaced during the 15 months of fighting.

The hostages are the second set to be released since the multiphase agreement came into effect, raising hopes for a lasting end to the war.

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.

A delegation from Palestinian group Hamas arrived in Cairo on Monday to discuss the implementation of ceasefire deal to end the war in Gaza, the group said in a statement. (Reporting by Ali Sawafta, Writing by Menna Alaa El-Din,

NBC News' Raf Sanchez reports on the fragile ceasefire deal between Israel and Hamas after a crisis over the weekend threatened to unravel the peace deal with a delay from Israel in allowing displaced Palestinians to return to their homes in the north of Gaza.