Israel approved a ceasefire deal with Palestinian militant group Hamas on Saturday that involves releasing hostages in the Gaza Strip, and Israeli forces carried out new attacks in the enclave before the agreement's scheduled start on Sunday.

CAIRO — The cease-fire between Hamas and Israel will go into effect Sunday at 8:30 a.m. local time, mediator Qatar announced Saturday, as families of hostages held in Gaza braced for news of loved ones, Palestinians prepared to receive freed detainees, and humanitarian groups rushed to set up a surge of aid.

Israeli government officials said they would wait at least until tomorrow before voting to ratify a deal to pause the fighting in Gaza and secure the release of dozens of Israeli hostages. The vote, which had been expected today, was delayed as diplomats raced to work through last-minute disputes between the two sides.