Hostages give thumbs up as they are handed over to members of the International Committee of the Red Cross. Reuters

Hamas were set on Sunday to release a third group of Israeli hostages in exchange for Palestinian prisoners, a day after freeing captives including a young woman snatched from a desert rave.

In a sign of the fragility of the exchanges, the latest swap Saturday was delayed for hours after Hamas accused Israel of breaching its side of the deal that led to a four-day ceasefire in the seven-week-old war.

Despite the dispute, Hamas finally released 13 Israelis and four Thai hostages at night, officials said.

Israel said it in turn freed 39 Palestinian prisoners.

The office of Israeli Prime Minister Benjamin Netanyahu said it had since received a list of hostages due to be released by Hamas on Sunday.

The list was being checked by security officials, it said, and families of the hostages had been informed.

‘Sigh of relief’

Thailand's Prime Minister Srettha Thavisin said the four hostages from his country released Saturday were healthy.

"Everyone is glad to be released. Overall mental health is still good," he said in a social media post.

Israeli prison authorities said the latest group of released Palestinian detainees included 38-year-old Israa Jaabis, sentenced to 11 years in jail for detonating a gas cylinder at a checkpoint in 2015.

The ceasefire and hostage-for-prisoner swap have brought the first significant relief to both sides since October 7, when Hamas fighters broke through Gaza's militarised border with Israel, snatched around 240 people and killed about 1,200 Israelis and foreigners, according to Israeli authorities.

Israel launched an air, artillery and naval bombardment alongside a ground offensive to destroy Hamas, killing nearly 15,000 people, mostly civilians and including thousands of children, according to the Hamas government in Gaza.

Agence France-Presse