The Israeli military said Friday it had identified the body of a hostage recovered from a tunnel in southern Gaza as the son of Yosef Al-Ziyadnah, a hostage whose body was recovered earlier this week.

"We are going to do everything we can in this round to get all the American hostages, living and dead, out," Ambassador Jacob J. Lew tells NPR. His tenure as President Biden's envoy ends this month.

The deal would secure release of a third of the approximately 100 hostages who remain in Gaza, including two dual U.S.-Israeli nationals. In return, Israel would release some Palestinian prisoners.