Thousands march in Tel Aviv to call for a hostage deal.

About 100,000 demonstrators rallied in Tel Aviv on Saturday, calling on Israel’s government to negotiate a hostage-release deal with Hamas, according to the event’s organizers.

The demonstration included speeches by ambassadors to Israel from the United States, Britain, Germany and Austria. They pledged to continue their efforts to bring home the hostages captured on Oct. 7 during the Hamas-led attack on Israel.

The Hostages and Missing Families Forum, the group behind Saturday’s event, has staged several similar demonstrations in Israel since the war in Gaza began. Roughly 240 people were abducted on the day of the attack. Around 125 remain, according to the Israeli authorities, not all of whom are alive.

Israel announced on Saturday that it had recovered the body of Ron Binyamin, 53, who had been held captive in Gaza. On the morning of the Oct. 7 attack, Mr. Binyamin — a husband and father of two daughters — had set out on a bicycle ride with friends near Be’eri, a small kibbutz near the Gaza border.

Rear Adm. Daniel Hagari, the Israeli military spokesman, said Hamas militants killed Mr. Binyamin and took his body back to Gaza, where his remains were retrieved on Thursday night along with those of Yitzhak Gelernter, Shani Louk and Amit Buskila.