Israeli authorities say more hostages held by Hamas will be released on Saturday.
As part of the Qatar-brokered deal, Israel will also release a group of Palestinian prisoners.
It's the second day of a four-day pause in fighting between Israel and Hamas in the Gaza Strip.
Relatives and friends of those being held by Hamas in Gaza have been gathering outside the Museum of Art in Tel Aviv, in a plaza that is now known as Hostages Square, hours ahead of the expected release of another group of captives.
Friday saw the release of 24 hostages - they included 13 Israelis, 10 Thais and one Filipino national.
39 Palestinian prisoners were released as part of the deal.
The biggest humanitarian convoy since the start of the war entered Gaza on Friday, carrying fuel, food and medical supplies.
Hamas’s attacks on 7 October killed 1,200 people, with about 240 taken hostage.
On Saturday night, a rally will be organised to mark 50 days since they were abducted, which is on Sunday, and organisers expect 50,000 people from across the country to attend.
Gaza's Hamas-run health ministry says more than 14,500 people have been killed in Israel's retaliatory campaign.
