Israelis briefly breathed a collective sigh of relief on Saturday, when the military announced it had rescued four hostages who were held in Gaza for eight months after being captured in the Oct. 7 attack led by Hamas.

The four hostages were taken at the Nova music festival on Oct. 7 and were rescued in an operation in the town of Nuseirat in central Gaza early Saturday. The mission left scores of Palestinians, including women and children, dead. News of the rescue raised renewed questions about the fate of those who remain in captivity and a proposed cease-fire deal.

How many hostages are still being held in Gaza?

Roughly 120 captives remain in Gaza. The Israeli military has confirmed that at least 30 of them have died.

Earlier this month, the Israeli military informed the families of four hostages that they were dead and that their bodies were being held by Hamas. In May, the military recovered the bodies of nine hostages, and the families of two Thai citizens who had been captured were informed that their bodies were still being held in Gaza.

Will Israel undertake more rescue operations?

Dozens of proposed rescue missions have not gone forward for fear the hostages or soldiers would lose their lives in the process, according to Israeli defense officials.

Israeli troops have managed to rescue only seven living hostages in three separate military operations. In December, Israeli troops accidentally fired on and killed three hostages in Gaza who were trying to reach safety.