TEL AVIV, Israel (AP) — Israel said Saturday that it killed Hezbollah leader Hassan Nasrallah, dealing its most significant blow to the Lebanese militant group after months of fighting. There was no immediate confirmation from Hezbollah.

If the claim is true, Nasrallah is by far the most powerful target to be killed by Israel in weeks of intensified fighting with Hezbollah. Ali Karki, the Commander of Hezbollah's Southern Front, and additional Hezbollah commanders, were also killed in the attack, the Israeli military said. The military said it carried out a precise airstrike on Friday while Hezbollah leadership met at their headquarters in Dahiyeh, south of Beirut.

Israel’s Chief of Staff, Lt. Gen. Herzi Halevi, said Saturday that the elimination of Nasrallah was “not the end of our toolbox,” indicating that more strikes were planned. He said that the strike targeting Hezbollah leadership was the result of a long period of preparation.

The Lebanese Health Ministry said six people were killed and 91 injured in the strikes Friday, which leveled six apartment buildings.

The Israeli military said it was mobilizing additional reserve soldiers as tensions escalate with Lebanon, activating three battalions of reserve soldiers to serve across the country. The call comes after it sent two brigades to northern Israel earlier in the week to train for a possible ground invasion.

On Saturday morning, the Israeli military carried out several strikes in southern Beirut and eastern Lebanon’s Bekaa Valley. Hezbollah launched dozens of projectiles across northern and central Israel and the Israel-occupied West Bank.

In Beirut’s southern suburbs, smoke rose and the streets were empty after the area was pummeled overnight by heavy Israeli airstrikes. Shelters set up in the city center for displaced people were overflowing. Many families slept in public squares and beaches or in their cars. On the roads leading to the mountains above the capital, hundreds of people could be seen making an exodus on foot, holding infants and whatever belongings they could carry.

At least 720 people have been killed in Lebanon over the past week from Israeli airstrikes, according to the Health Ministry.

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Mroue reported from Beirut.

FILE - In this Oct. 24, 2015 file photo, Hezbollah leader Sheik Hassan Nasrallah addresses a crowd during the holy day of Ashoura, in a southern suburb of Beirut, Lebanon. (AP Photo/Hassan Ammar, File)

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An Israeli soldier carries a shell next to a tank in northern Israel on Friday, Sept. 27, 2024. (AP Photo/Baz Ratner)

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Smoke rises from Israeli airstrikes in Beirut's southern suburbs, Lebanon, Saturday, Sept. 28, 2024. (AP Photo/Hassan Ammar)

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Rescuers gather as smoke rises from a collapsed building at the site of an Israeli airstrike in Beirut's southern suburbs, Friday, Sept. 27, 2024. (AP Photo/Hassan Ammar)

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Flames rise after an Israeli airstrike in the southern suburbs of Beirut, Lebanon, Saturday, Sept. 28, 2024. (AP Photo/Hussein Malla)

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Lebanese citizens watch smoke rise from Israeli airstrikes in the southern suburbs of Beirut, Lebanon, Saturday, Sept. 28, 2024. (AP Photo/Hussein Malla)

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Smoke rises from an Israeli airstrike in the southern suburbs of Beirut, Lebanon, Saturday, Sept. 28, 2024. (AP Photo/Hussein Malla)

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A wounded man sits in an ambulance at the site of an Israeli airstrike in Beirut's southern suburbs, Friday, Sept. 27, 2024. (AP Photo/Hassan Ammar)

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Rescuers arrive near the site of an Israeli airstrike in Beirut's southern suburbs, Friday, Sept. 27, 2024. (AP Photo/Hassan Ammar)

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Rescuers arrive near the site of an Israeli airstrike in Beirut's southern suburbs, Friday, Sept. 27, 2024. (AP Photo/Hassan Ammar)

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Smoke and fire rise following an Israeli airstrikes in Beirut's southern suburbs, Lebanon, Saturday, Sept. 28, 2024. (AP Photo/Hassan Ammar)

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Israeli soldiers work on tanks in northern Israel on Friday, Sept. 27, 2024. (AP Photo/Baz Ratner)

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