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.

Israel believes a third of the remaining hostages are dead, while a number have been previously freed through negotiated deals. However, Yosef and Hamzah Al Zaydani were believed to still be alive and their bodies’ return could ramp up the pressure on Israel to move ahead on a deal.