Months of shuttle diplomacy have failed to end the war in Gaza, which began after Hamas launched a surprise attack on Israel on Oct. 7, 2023 that killed 1,200 people and saw 250 taken hostage. Around 105 captives were later released in a weeklong cease-fire in November 2023 in exchange for 240 Palestinian prisoners.

The first phase, spanning a 42-day ceasefire, would see the exchange of 33 Israeli hostages in Gaza for Palestinians held in Israeli prisons, U.S. officials said.

Israeli Prime Minister Benjamin Netanyahu's office denied on Wednesday that Hamas had agreed to the Gaza ceasefire proposal from Qatari mediators, after an Israeli official said the Palestinian militant group had given its approval.