Hamas has released the names of three Israeli men it said it would free from Gaza on Saturday, in what will be the fifth round of exchanges under the ongoing ceasefire.

Hamas accused Israel on Friday of breaching their ceasefire accord and it delayed announcing the names of three more Israeli hostages due to be exchanged for Palestinian prisoners in the latest stage in a fragile deal aimed at ending the war in Gaza.

It is believed that at least two of the six American hostages still held in Gaza are alive — Sagui Dekel-Chen, 35, who grew up in Bloomfield, Connecticut, and Edan Alexander, 19, from Tenafly, New Jersey. Four other Americans are believed to have been killed in captivity.

Hamas has delayed the naming of three hostages to be released on Saturday after accusing Israel of multiple breaches of the ceasefire agreement, alleging that it has delayed hundreds of humanitarian aid trucks and only allowed in a fraction of the tents needed to accommodate people who have lost their homes in the conflict.

Hamas have so far freed 18 hostages in exchange for around 600 Palestinian prisoners released from Israeli jails

The names of the latest hostages to be released by Hamas are set to be released later today as the fragile ceasefire between Israel and Hamas continues. NBC News’ Yasmin Vossoughian reports from Tel Aviv on the latest details surrounding the new hostage release.

Two weeks after the ceasefire between Hamas and Israel took effect, much-needed humanitarian assistance is surging into the Gaza strip. But Palestinians say it’s still an uphill battle to ensure it reaches everyone.

Talks have started on the second phase of the Gaza ceasefire deal, the spokesperson for the Palestinian militant group Hamas said on Tuesday.

The delay had raised concerns about progress in the fragile cease-fire amid a dispute over the flow of humanitarian goods into the enclave.