Live Updates: Israel Says It Killed Hamas’s Leader in Lebanon

Israeli strikes have stretched deep into Lebanon in recent days and across the Middle East. Israeli forces bombarded a densely populated neighborhood near Beirut late Friday, killing Hezbollah’s leader, Hassan Nasrallah. They also launched attacks on dozens of Hezbollah targets on Sunday, targeting rocket launchers and buildings that Israel said had been used to store weapons.

Naim Qassim, the deputy secretary general of Hezbollah, said in a televised address on Monday that the group would name a leader to replace Mr. Nasrallah “at the closest opportunity.”

Here’s what else to know:

• Lebanon: A separate blast in Beirut overnight hit a residential building, leaving at least four people dead and four others injured, Lebanon’s health ministry said. The Popular Front for the Liberation of Palestine, a militant group based in Lebanon and Gaza, said that three of its members had been killed in the blast, in the largely Sunni Muslim neighborhood of Cola. The group is mostly known for a string of airline hijackings and bombings decades ago. Israel did not immediately comment. If Israeli involvement were confirmed, it would be the first known Israeli attack in central Beirut since Israel and Hezbollah fought a war in 2006.

• Yemen: Israeli warplanes attacked power plants and shipping infrastructure on Sunday in Yemen, where the Iran-backed Houthi militia has been conducting attacks against Israel and menacing trade in the Red Sea. The Houthis have been acting in solidarity with Hamas, the Iran-backed group fighting Israel in the Gaza Strip.

• Gaza: An Israeli strike in northern Gaza on Sunday killed at least four Palestinians and wounded several others, according to the Palestinian civil defense. The Israeli military said it had struck Hamas militants who were using a school-turned-shelter as a command and control center.

Gabby Sobelman contributed reporting.

The A.P. released videos from the Lebanese capital on Monday that showed people and emergency workers gathering below a damaged multistory building in the largely Sunni Muslim neighborhood of Cola. There was no immediate comment from the Israeli military.

A militant group based in Lebanon and Gaza, the Popular Front for the Liberation of Palestine, said that three of its members had been killed in the strike in Cola. That claim by the group, which is mostly known for a string of airline hijackings and bombings decades ago, could not be independently verified.

The intensifying cadence of Israeli strikes has stretched deep into Lebanon. Israel has said that most have been directed at Hezbollah, whose leader, Hassan Nasrallah, was killed late Friday by Israeli bombs. But the military has also hit other groups, including a strike against Iran-backed Houthi forces in Yemen.

Euan Ward contributed reporting.

He and three other members of his party will be joining the coalition, said Michael Maoz, a spokesman for Mr. Saar. Mr. Netanyahu’s coalition will in effect grow to 68 members from 64; there are 120 members in the Knesset, Israel’s parliament.

The prime minister and his defense minister, Yoav Gallant, have frequently clashed since the Hamas-led attack on Oct. 7, fueling speculation that Mr. Netanyahu could be looking for a way to fire him.

Mr. Saar had originally sought to become defense minister, but a deal that would have landed him that job fell apart after Israel exponentially increased its attacks on Hezbollah two weeks ago.

Later on Sunday, the government unanimously approved appointing Mr. Saar as a minister without a portfolio.

Explaining his decision, Mr. Saar said he did not see value in continuing to sit in the opposition, most of whom hold different views from his on the war.

“This is a time in which it’s my obligation to try to contribute to decision making,” he said.

Johnatan Reiss contributed reporting.

For months, the Houthis have been conducting attacks against Israel and menacing trade in the Red Sea in solidarity with Hamas, whose fighters spearheaded the Oct. 7 attacks on Israel, setting off the war in Gaza. Israel’s strikes on Sunday marked the second known time that Israel has retaliated against the Houthi attacks by striking in Yemen, around 1,000 miles away from its southernmost tip.

In a statement, the military said dozens of its planes had participated in attacking power stations and a seaport in the province of Hodeidah that it claimed were being used to import munitions from Iran, military supplies and oil.

Nasruddin Amer, a Houthi spokesman, said Israel’s attacks would not prevent the group from continuing to fire on Israel. “We’re at war with the Zionist enemy and our operations will not stop,” he said in a text message.

Al-Masirah, a TV channel affiliated with the Houthis, reported that the strikes hit oil depots at the Ras al-Issa port as well as areas near the Hodeidah port. In a post on X, Mr. Amer said the oil depots at the Ras al-Issa and Hodeidah ports had been emptied in advance.

A spokesman from the Houthi-run health ministry said on Sunday that four people had been killed and about 40 were wounded, some of whom were in critical condition. “This is an initial tally and paramedics are still working on the scenes,” said Anis al-Asbahi, the spokesman of the Sana-based health ministry.

Humanitarian experts have warned that targeting ports in northern Yemen could exacerbate an already dire humanitarian situation.

“Over half of Yemen’s population is dependent on humanitarian aid,” and much of it flows in through ports in the country’s north, said Niku Jafarnia, a researcher for Human Rights Watch focusing on Yemen.

On Friday and Saturday, the Houthis fired missiles toward central Israel. The Israeli military said both were intercepted.

On July 19, the Houthis launched a drone attack on Tel Aviv that crashed into a building near the U.S. Embassy branch office, killing one person and wounding several others.

A day later, Israeli fighter jets bombed the Red Sea port of Hodeidah, which is controlled by the Houthis. The July strikes killed three people and injured 87, according to the Houthi-run health ministry.

Human Rights Watch called Israel’s retaliation at the time “an apparently unlawful indiscriminate or disproportionate attack on civilians.”

The Houthis are a Yemeni Shiite militia that over the past decade has seized control of large parts of western Yemen, including the capital, Sana, and the Red Sea coastline. While the group’s antagonism toward Israel long preceded the war in Gaza, the Houthis had rarely attacked Israeli interests before last October.

Since November, the Houthis have targeted ships that they claim have links to Israel in the Red Sea, a key trade route between Asia, Europe and the Middle East. In response, the United States, Britain and other allies of Israel have attacked Houthi weapons depots, missile systems and radar facilities in Yemen.

Ismaeel Naar and Shuaib Almosawa contributed reporting to this article.

In Karachi, the protest began peacefully with a large number of demonstrators, including women and children, gathering at the Karachi Press Club.

“The Islamic world has been deprived of a great leader,” said Allama Baqir Abbas Zaidi, a prominent Shiite leader, addressing the crowd in Karachi.

Chants of “Death to Israel,” “Down with the U.S.” and “Long live Nasrallah” filled the air as protesters marched toward the U.S. Consulate.

“We want to show our anger today against what Israel is doing in Palestine and Lebanon,” said Sajid Hussain, a 27-year-old university student who attended the protest.

As the protesters approached within a mile of the consulate, they were met by a heavy police presence. Tensions escalated when police officers used tear gas to disperse the crowd, leading to violent clashes that left several protesters and police personnel injured.

Similar protests were held in other major Pakistani cities, including the capital, Islamabad, where thousands of mourners gathered peacefully. The Pakistani government also strongly condemned Israel’s assassination of Mr. Nasrallah.

“For the last several days, Israeli forces have engaged in unacceptable violations of the sovereignty of Lebanon, relentlessly targeting civilian population centers, and undermining its stability and security,” Mumtaz Zahra Baloch, the Foreign Office spokeswoman, said in a statement.

Hezbollah has vowed to keep fighting. The absence of a large-scale retaliation by the group against Israel so far has led some experts to believe that the attacks have left Hezbollah in disarray, with so many of its people incapacitated and its communications so compromised that it would struggle to mount a major counterattack. But some United States officials have warned that it would be premature to consider Hezbollah defeated, given the size of its arsenal and its history of adapting to blows from Israel.

Islamic custom usually calls for the dead to be buried swiftly, but Hezbollah most likely wants to give Mr. Nasrallah, a beacon for the group and its anti-Israeli allies across the Middle East, a funeral befitting his stature. It is not clear what of Mr. Nasrallah’s remains have been recovered from the site of the bombing, which left a gaping crater, and continued Israeli strikes on the area, a Hezbollah stronghold, have likely complicated efforts to plan what would in normal times be a mass gathering.

Hezbollah has not named Mr. Nasrallah’s successor nor indicated when it would. Recent Israeli airstrikes have killed a number of Hezbollah’s other longtime military and political leaders.

Officials in Lebanon, Israel and the United States expect Mr. Nasrallah’s replacement to be Hashem Safieddine, one of his cousins.

Mr. Safieddine is part of Hezbollah’s senior leadership, although he has nothing close to Mr. Nasrallah’s public profile. Another senior figure who is still alive is Mr. Nasrallah’s deputy, Naim Qassim.