DEIR AL-BALAH, Gaza Strip — A four-day cease-fire in Gaza between Israel and Hamas is set to begin Friday morning, Qatar said after a daylong delay extended the agony for those hoping for some relief from the deal, which is to bring the release of dozens of hostages held by militants and Palestinians imprisoned by Israel.

The diplomatic breakthrough promised some relief for the 2.3 million Palestinians in Gaza who have endured weeks of Israeli bombardment, as well as families in Israel fearful for the fate of their loved ones taken captive during Hamas’ Oct. 7 attack that triggered the war.

The cease-fire was originally set to begin Thursday morning, but it appeared to hit a snag the night before when Israel’s national security adviser, Tzachi Hanegbi, announced a one-day delay without providing a reason.

On Thursday, Qatari Foreign Ministry spokesman Majed al-Ansari announced the cease-fire will start at 7 a.m. local time Friday (5 a.m. GMT.)

He said the two sides had exchanged lists of those to be released, and the first group of 13 women and children held by Hamas would be freed Friday afternoon. He did not say how many Palestinian prisoners would be freed, but officials have said three would be freed for every hostage.

Increased aid for Palestinians will start to enter Gaza “as soon as possible,” al-Ansari said. The hope is that the “momentum” from this deal will lead to an “end to this violence,” he told reporters.

Israeli airstrikes continued Thursday. In the afternoon, a strike leveled a residential building in the Nuseirat refugee camp in central Gaza. At least 12 people were killed, according to officials at nearby Al-Aqsa Hospital.

The truce agreement had raised hopes of eventually winding down the war, which has leveled vast swaths of Gaza, fueled a surge of violence in the occupied West Bank and stirred fears of a wider conflagration across the Middle East.

But Prime Minister Benjamin Netanyahu vowed to continue the war after the truce expires to destroy Hamas’ military capabilities, end its 16-year rule in Gaza and return all the estimated 240 captives held in Gaza by Hamas and other groups.

“We will continue it until we achieve all our goals,” Netanyahu said, adding that he had delivered the same message in a phone call to U.S. President Joe Biden. Washington has provided extensive military and diplomatic support to Israel since the start of the war.

In Gaza’s city of Khan Younis, Palestinians welcomed the respite of the upcoming cease-fire but said four days would do little to relieve the humanitarian disaster caused by the war.

“God willing, it becomes a total cease-fire,” said Jihan Qanan. “People have had houses brought down on their heads, they’ve been expelled … There’s no homes, no money, no possessions. The whole world is wrecked.”