Israel pounded the densely-populated territory where millions waited for promised aid deliveries on Saturday.
The Islamist group took more than 200 people hostage when it stormed into Israel from the Gaza Strip on October 7, and killed at least 1,400 people, mostly civilians who were shot, mutilated or burnt to death on the first day of the raid, according to Israeli officials.
The fate of the hostages has been shrouded in uncertainty, so the release of mother and daughter Judith and Natalie Raanan offered a rare «sliver of hope», said Mirjana Spoljaric, president of the International Committee of the Red Cross.
US President Joe Biden said he was «overjoyed» by the release, which comes days after he visited Israel to express solidarity with the wounded country and press for humanitarian aid into Gaza.
Trucks carrying relief are still stuck on the Egyptian side of the Rafah border crossing into Gaza, though Biden said they could cross in the «next 24 to 48 hours.»
Israel has vowed to destroy Hamas, and says around 1,500 of the group's fighters were killed in clashes before its army regained control of the area under attack on October 7.
Biden said Friday he believes the attack was motivated partly by Saudi Arabia's plan to recognise Israel.
Israel's military campaign has levelled entire city blocks in Gaza, killing 4,137 Palestinians, mostly civilians, according to the Hamas-run health ministry.
Israeli troops are massed on the border with Gaza ahead of an expected ground invasion that officials have pledged will begin «soon».
But a full-blown land offensive carries many risks, including to the hostages from Israel and around the world held by Hamas.
'Overwhelming sense of joy'
Biden said he had spoken to the