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(NEW YORK) -- As the Israel-Hamas war continues, efforts to secure the release of hostages taken by the terrorist organization are ongoing, and Israeli forces have launched an assault in Khan Younis in southern Gaza.

Here's how the news is developing:

'Time for a deal,' families of hostages say

A group representing the families of hostages held in the war-torn Gaza Strip, who were abducted from southern Israel during the Oct. 7 attacks, released a statement on Wednesday urging "the Israeli government and global leaders to decisively advance negotiations."

"This is the time for a deal," the statement said.

The statement comes amid rising tensions in the region after Hamas' political leader was killed by a predawn airstrike in the Iranian capital Tehran -- and only hours after Israel targeted a top commander for Iran's ally Hezbollah in the Lebanese capital Beirut.

Iran has 'duty to take revenge,' supreme leader says

Iran's Supreme Leader Ali Khamenei said his country had a "duty to take revenge" after Hamas' political leader was killed in Tehran.

"However, following this bitter, tragic event which has taken place within the borders of the Islamic Republic, we believe it is our duty to take revenge," Khamenei said Wednesday.

No country or organization has yet taken credit for the assassination, but Khamenei appeared in his statement to blame Israel, saying the "criminal, terrorist Zionist regime martyred our dear guest in our territory."

Global reactions rolling in following Haniyeh killing

As news of the killing of Ismail Haniyeh, the political leader of Hamas, begins to spread on Wednesday morning, global leaders have started to react, condemning his death and calling it a “heinous assassination.”

In a statement, Jordan’s Ministry of Foreign Affairs “condemned in the strongest terms Israel’s assassination of the head of the political bureau of the Islamic Resistance Movement in Palestine (Hamas), Ismail Haniyeh, may God have mercy on him, in the Iranian capital, Tehran, in violation of international law and international humanitarian law, and an escalatory crime that will push towards more tension and chaos in the region.”

Turkey’s Ministry of Foreign Affairs also condemned Haniyeh’s death, calling it a “heinous assassination” and reiterated the need to stop Israel from escalating regional tensions. 

Meanwhile, Russia’s Deputy Foreign Minister Mikhail Bogdanov told state-owned RIA news agency that the killing of Haniyeh “is an absolutely unacceptable political murder, and it will lead to further escalation of tensions."

Israeli press office posts photo declaring Hamas leader 'eliminated'

The Israeli Government Press Office posted a photo of Ismail Haniyeh with the word "eliminated" over the Hamas political leader's head. The post, which had been live for more than an hour, was then removed Wednesday morning.

"Eliminated: Ismail Haniyeh, Hamas highest- ranking leader, was killed in a precise strike in Tehran, Iran," the office said in a post on its official Facebook page.

There has been no claim of responsibility for the assassination.

Killing will strengthen Iranian-Palestinian bond, minister says

The death of Ismail Haniyeh, the Hamas political leader, in Iran "will strengthen the deep and unbreakable bond between the Islamic Republic of Iran and the beloved Palestine and the resistance," an Iranian state spokesperson said.

"The pure blood of Martyr Haniyeh will never be wasted," Foreign Ministry spokesperson Nasser Kanaani said, according to Iranian state media.

Iranian authorities were investigating the assassination, he said.

Kanaani praised Haniyeh for spending his life in the "honorable struggle against the usurping Zionist regime" and for seeking the "the liberation of the oppressed Palestinian nation."

Hamas, allies react to Haniyeh killing, calling it a 'cowardly act'

Reaction from Hamas and its allies was swift, with Musa Abu Marzouq, a member of the Hamas political office, saying in a statement, "The assassination of Ismail Haniyeh, the head of the Hamas Political Bureau, is a cowardly act and will certainly not go unanswered."

Islamic Jihad also issued a statement, saying the death of Haniyeh will not deter them.

Mahmoud Abbas, president of the state of Palestine, said he strongly condemned the assassination of Haniyeh, calling the attack "a cowardly act."

Political leader of Hamas has been killed in Tehran, Iran says

Ismail Haniyeh, the political leader of Hamas, has been killed in Tehran along with his bodyguard, Iran’s Islamic Revolutionary Guard Corps has said in a statement.

There has been no claim of responsibility for the attack at this stage.

Haniyeh was killed in his home in Tehran after participating in the inauguration of the new Iranian president, according to Hamas.

IDF says it targeted senior Hezbollah commander in Beirut

The Israel Defense Forces said it targeted a senior Hezbollah commander in Beirut, Lebanon. The IDF said the commander is responsible for Saturday's strike that killed children playing soccer in Majdal Shams in the Israeli-controlled Golan Heights.

Israeli Defense Minister Yoav Gallant said on social media that Hezbollah "crossed the red line."

The Lebanese Red Cross said the strike hit a residential building, killing at least two and injuring 20.

The target of Israel's strike was Fouad Shukr, also known as Al-Hajj Mohsen, according to three security sources familiar with the operation.

The United States was given advanced notice ahead of Israel’s strike, according to a U.S. official familiar with matter. The message was communicated via security channels and limited operational detail was shared, the official said. It’s not clear whether the strike successfully eliminated its target.

Vice President Kamala Harris said Tuesday that "Israel has the right to defend itself against a terrorist organization, which is exactly what Hezbollah is."

"But all of that being said, we still must work on a diplomatic solution to end these attacks and we will continue to do that work," she added.

State Department deputy spokesperson Vedant Patel told reporters he didn’t have "any updates on any specific activity," but added, "We have been in continuous discussions with Israeli and Lebanese counterparts since the incident over the weekend, and the United States is going to continue to support efforts to reach a diplomatic solution along the blue line."

"Our support for Israel's security is ironclad, and it's unwavering, especially as it defends itself against Iran-backed threats, including threats from Hezbollah," Patel said.

-ABC News' Dana Savir and Shannon Kingston

85 sick and injured evacuated from Gaza in largest medical evacuation in 9 months

Eighty-five sick and severely injured people, including 35 children, have been evacuated from Gaza to get care in Abu Dhabi, said Dr. Tedros Adhanom Ghebreyesus, director-general of the World Health Organization.

This was Gaza’s largest medical evacuation since October 2023, according to the WHO.

The evacuees’ illnesses include cancer, neurological conditions, cardiac disease and liver disease, Tedros said.

Sixty-three family members and caregivers accompanied the patients, the WHO said.

"We hope this paves the way for the establishment of evacuation corridors via all possible routes. Thousands of sick people are suffering needlessly," Tedros said. "Above all, and as always, we call for a cease-fire."

-ABC News’ Will Gretsky

IDF says it targeted senior Hezbollah commander in Beirut

The Israel Defense Forces said it targeted a senior Hezbollah commander in Beirut, Lebanon. The IDF said the commander is responsible for Saturday's strike that killed children playing soccer in Majdal Shams in the Israeli-controlled Golan Heights.

Israeli Defense Minister Yoav Gallant said on social media that Hezbollah "crossed the red line."

The target of Israel's strike was Fouad Shukr, also known as Al-Hajj Mohsen, according to three security sources familiar with the operation.

The United States was given advanced notice ahead of Israel’s strike, according to a U.S. official familiar with matter. The message was communicated via security channels and limited operational detail was shared, the official said.

State Department deputy spokesperson Vedant Patel told reporters he didn’t have "any updates on any specific activity," but added, "We have been in continuous discussions with Israeli and Lebanese counterparts since the incident over the weekend, and the United States is going to continue to support efforts to reach a diplomatic solution along the blue line."

"Our support for Israel's security is ironclad, and it's unwavering, especially as it defends itself against Iran-backed threats, including threats from Hezbollah," Patel said.

-ABC News' Dana Savir and Shannon Kingston

IDF withdraws from Khan Younis after weeklong raid killing 226

The Israel Defense Forces announced that it has “completed operational activity in the area of Khan Younis” in the southern Gaza Strip on Tuesday morning, more than a week after it began bombarding the eastern part of the city -- a designated humanitarian zone.

At least 226 people have been killed by Israeli forces in and around Khan Younis since the IDF raid began early on July 22, according to Gaza’s Hamas-run Ministry of Health.

-ABC News' Diaa Ostaz, Jordana Miller and Samy Zyara

One dead in Israel, one dead in Lebanon amid rising tensions

At least one person is dead in northern Israel following a rocket salvo from Lebanon this afternoon, according to Israel’s national emergency service. One person was also killed in southern Lebanon following a drone strike targeting a house in the town of Beit Lif early Tuesday, according to Lebanon's National News Agency.

The Israel Defense Forces said its fighter jets conducted strikes in southern Lebanon earlier Tuesday.

Approximately 10 projectiles crossed from Lebanon into Israeli territory, with the majority of the projectiles being intercepted, according to the IDF. A direct hit was identified in the area of HaGoshrim in northern Israel.

12:34 PM EDT
US meetings with Netanyahu were 'very constructive,' Kirby says

U.S. officials’ meetings with Israeli Prime Minister Netanyahu in Washington, D.C., last week were "very constructive and certainly nothing that discouraged us in terms of trying to close the remaining gaps" while trying to secure the hostage deal, National Security Council spokesman John Kirby told reporters Monday.

"We still believe those gaps can be narrowed ... and we can move forward. But obviously, as I said earlier, it's going to take compromise, it's going to take leadership," he said.

"There's no indication that we see, at this point in time, the weekend strike by Hezbollah into the Golan [Heights] area is going to negatively affect those discussions," Kirby added.

Kirby also pushed back on the suggestion that Vice President Kamala Harris had a different message for Netanyahu from President Joe Biden, saying there was "no daylight" between their messages, and that reporting suggesting otherwise was "unfortunate and inaccurate."

"There was no daylight between anything, the president, the vice president told the prime minister. Same points, same emphasis -- the commitment and reaffirmation to help Israel continue to defend itself against these threats. Same reaffirmation by both the president and the vice president, that we want to see the cease-fire deal get enacted because of what it can do to improve the humanitarian situation. And of course, getting those hostages home with their families," Kirby said.

Pressed on why Harris had her own meeting if their message was the same, Kirby defended Harris.

"The vice president couldn't be in town for the meeting in the Oval [Office], and as she has been a full partner in all our foreign policy, but certainly in particular, the policy that this administration has pursued with respect to the Middle East, she felt it was important to also sit down with Prime Minister Netanyahu,” Kirby said.

-ABC News’ Molly Nagle

12:21 PM EDT
White House condemns 'horrific' attack on Golan Heights

The United States "absolutely condemn this weekend's horrific attack" that killed children playing soccer in Majdal Shams in the Golan Heights, National Security Council spokesman John Kirby told reporters Monday.

At least 12 people were killed, according to the Israel Defense Forces. Hezbollah has denied involvement in the rocket attack but Secretary of State Antony Blinken said Sunday that "every indication" points to Hezbollah as responsible for the strike.

Kirby also assigned blame to Hezbollah in Lebanon, saying "it was their rocket launched from an area that they control."

"The United States will continue to support efforts to reach a diplomatic solution along that blue line that will, No. 1, end these terrible attacks once and for all, and No. 2, allow Israeli and Lebanese citizens on both sides of the border to safely return to their homes," Kirby said.

Kirby stressed that U.S. support for Israeli security remains "ironclad" against all Iran-backed threats, adding, "We believe that there is still time and space for a diplomatic solution."

Asked if the administration was urging Israel to show restraint in any response, Kirby said that Hezbollah made the first strike on Israel back in October and that "Israel has every right to respond," but he said he was confident that a broader conflict could be avoided.

"Nobody wants a broader war and I'm confident that we'll be able to avoid such an outcome. I'll let the Israelis really speak to whatever their response is going to be," Kirby said.

-ABC News’ Molly Nagle

4:43 PM EDT
Netanyahu and Gallant to decide how to retaliate for Golan Heights attack

Israeli Prime Minister Benjamin Netanyahu and Defense Minister Yoav Gallant were granted the authority Sunday to decide the manner and timing of a response to the alleged attack by Hezbollah on the town of Majdal Shams in the Golan Heights, according to the prime minister's office.

During a meeting in Tel Aviv, members of Israel's political-security cabinet gave Netanyahu and Gallant the authority to devise a plan to retaliate for the strike that killed 12 people, including children playing soccer, according to the statement from the prime minister's office.

"The members of the cabinet authorized the Prime Minister and the Minister of Defense to decide on the manner of response against the terrorist organization Hezbollah, and when," according to the statement.

Hezbollah has denied involvement in the rocket attack. The Israel Defense Forces and the White House both blamed Hezbollah for the attack.

-ABC News' Jordana Miller

1:41 PM EDT
White House blames Hezbollah for deadly rocket attack on Golan Heights

The White House on Sunday blamed Hezbollah for the rocket strike Saturday on Golan Heights that it said killed children playing soccer.

At least 12 people were killed in the weekend attack in Majdal Shams, a town in the Golan Heights, according to the Israel Defense Forces.

"We have been in continuous discussions with Israeli and Lebanese counterparts since the horrific attack yesterday in northern Israel that killed a number of children playing soccer," White House National Security Council spokesperson Adrienne Watson said in a statement. "This attack was conducted by Lebanese Hezbollah. It was their rocket, and launched from an area they control. It should be universally condemned."

Hezbollah has denied involvement in the rocket attack in Majdal Shams. But the IDF said a Hezbollah rocket was used in the attack, and U.S. Secretary of State Antony Blinken said earlier Sunday that "every indication" points to Hezbollah as responsible for the strike.

-ABC News' Fritz Farrow

July 28, 2024, 12:35 PM EDT
Middle East Airlines delays flights following Israeli strike on Lebanon

Lebanon's flagship air carrier, Middle East Airlines, delayed departures of several inbound flights to Beirut on Sunday, the airline announced.

The decision by Middle East Airlines came after the Israel Defense Forces announced on Sunday that the military struck targets "deep inside" Lebonnon overnight. The IDF attack in Lebanon unfolded a day after a rocket strike killed 12 people in Majdal Shams, a town in Golan Heights.

Hezbollah denied involvement in the rocket attack in Majdal Shams, but IDF officials claim it was a Hezbollah rocket that hit a sports field, and Secretary of State Antony Blinken said that "every indication" points to Hezbollah as being responsible for the strike.

Middle East Airlines said it delayed the departures of six inbound flights to Beruit that would normally land at night. The flights are now scheduled to land during the day on Monday, the airline said.

Meanwhile, Royal Jordanian Airlines also told ABC News it is considering rescheduling a flight from Amman to Beirut to early Monday morning.

-ABC News' Ghazi Balkiz

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