Israel says Hamas leader Yahya Sinwar killed in southern Gaza Strip

Lebanon's Hezbollah militant group said on Friday it was moving to a new and heightened phase in its war against Israel while Iran said "the spirit of resistance will be strengthened" after the killing of Hamas leader Yahya Sinwar.

Sinwar, a mastermind of the Oct. 7, 2023, attackthat triggered the Gaza war, was killed during an operation by Israeli soldiersin the Palestinian enclave on Wednesday,a pivotal event in the year-long conflict.

Western leaders said his death offered an opportunity for the war to end,but Israeli Prime Minister Benjamin Netanyahu said it would go onuntil the hostages seized by Hamas militants were returned.

"Today we have settled the score. Today evil has been dealt a blow but our task has still not been completed," Netanyahu said in a recorded video statement after the death was confirmed on Thursday.

"To the dear hostage families, I say: This is an important moment in the war. We will continue full force until all your loved ones, our loved ones, are home."

Sinwar, who was named as Hamas's overall leader following the assassination of political chief Ismail Haniyeh in Tehran in July, was believed to have been hiding in the warren of tunnels Hamas has built under Gaza over the past two decades.

He was killed during a gun battle in southern Gaza on Wednesday by Israeli troops who were initially unaware that they had caught their country's number one enemy, Israeli officials said.

The military released drone video of what it said was Sinwar, sitting on an armchair and covered in dust inside a destroyed building.

Hamas has not made any comment itself, but sources in the militant group have said theindications they have suggestSinwar was indeed killed byIsraelitroops.

Hostage familieshope for ceasefire

Despite Western hopes of a ceasefire, his death could dial up hostilities in the Middle East wherethe prospect of an even wider conflict has grown. Israel haslaunched a ground campaign in southern Lebanon over the past month and isnow planning a response to an Oct. 1 missile attack carried outby Iran, an ally of both Hamas and Lebanon's Hezbollah.

But the demise of the man who planned the attack last yearin which Hamas-led militants killed 1,200 people in Israel and capturedmore than 250 hostages, according to Israeli tallies, could alsohelp push forward stalled efforts to end the war in which Israelhas killed more than 42,000 Palestinians, according to Gazahealth authorities.

U.S. President Joe Biden who spoke to Netanyahu by phone to congratulate himsaid Sinwar's death provided a chance for the more than year-long conflict in Gaza to finally end and for Israeli hostages to be brought home.

The U.S. wants to kickstart talks on a proposal to achieve a ceasefire and secure the release of hostages, U.S. State Department spokesperson Matthew Miller said, calling Sinwar the "chief obstacle" to ending the war.

"That obstacle has obviously been removed. Can't predict that that means whoever replaces [Sinwar]will agree to a ceasefire, but it does remove what has been in recent months the chief obstacle to getting one," he said. In recent weeks, Sinwar had refused to negotiate at all, Miller said.

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Prime Minister Justin Trudeau said in astatement posted to X Thursday that Sinwar's death"delivers a measure of justice for his victims and their families" and ends "a reign of terror."

"Hamas must lay down its arms, release the hostages, and play no future role in the governance of Gaza. We repeat our call for an immediate ceasefire. The suffering in Gaza must end," Trudeau said.

U.S. Vice-President Kamala Harris, the Democratic nominee in the U.S. presidential election, told reporters: "Justice has been served."

Iran indicated no sign the killing would shift its support. "The spirit of resistance will be strengthened" following the death of Sinwar, its mission to the United Nations said.

Hezbollah was also defiant, announcing the "transition to a new and escalating phase in the confrontation with Israel."

U.S. Secretary of State Antony Blinken held separate phone calls on Thursday with leaders in Saudi Arabia and Qatar aimed at ending the conflict in the Middle East, the U.S. State Department said.

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'Inflection point'

Dave Harden, the founder of Georgetown Strategy Group and a former U.S. official based in the region, called the possible death of Sinwar an "inflection point" in the yearlong war or for those still in captivity.

"The thing I would watch for next, is what [will]Hamas do with the hostages if anything," Harden told CBC News Network before Sinwar's death was confirmed.

Hamas could kill some or all of the remaining hostages, Harden said, but there is the possibility the development could be an "offramp" for Hamas's senior figures in Qatar or elsewhere to negotiate with the Israelis.

Families of Israeli hostages said that while the killing of Sinwar was a significant achievement, it would not be complete while hostages are still in Gaza.

Avi Marciano, the father of Noa Marciano, who was held captive by Hamas and killed in captivity, told Israeli broadcaster KAN that "the monster, the one who took her from me, who had the blood of all our daughters on his hands, finally met the gates of hell.

"A little justice, but no comfort.There will be comfort only when Naama, Liri, Agam, Daniela and Karinaour girls' friends return home."

In Khan Younis in the south of the Gaza Strip, a displaced Palestinian named Thabet Amour told Reuters the Palestinian fight would continue.

"This is resistance that does not disappear when men disappear. The assassination of Sinwar will not lead to the end of the resistance or to a compromise or surrender and raising the white flag."

Wassim Akhras, who had also fled his home due to Israeli bombardments, said he believed onlythe Israeli hostages being returned to their families would be"a sufficient reason to stop the war."

"I don't think things hinge on Yahya Sinwar, someone will come out following Yahya Sinwar, and Hamas will continue."