Follow NBC News' live coverage as Iran responds to Hezbollah leader Hassan Nasrallah's killing in an Israeli strike.

Hezbollah’s leader Hassan Nasrallah’s death left a void at the top of the world’s most heavily armed nonstate militia. WSJ's ...

In a significant diplomatic move, Russian Prime Minister Mikhail Mishustin is set to meet with Iran's President Masoud ...

Iran lost its most reliable ally in the Middle East when an Israeli airstrike killed Hezbollah leader Hassan Nasrallah ...

Leaders in Tehran suggested it would be the Lebanese militia that would strike back at Israel after the killing of Hassan ...

TEL AVIV, Israel—Since news of the killing of longtime Hezbollah leader Hassan Nasrallah began spreading across the Middle ...

Israeli airstrikes killed Hassan Nasrallah and other top leaders of the militant group, escalating the chance of all-out war ...

A picture of Hassan Nasrallah, the late leader of the Lebanese group Hezbollah, who was killed in an Israeli air strike in ...

UNITED NATIONS — Syria’s top diplomat is warning the United Nations General Assembly that Israel’s strikes in Lebanon, Gaza, ...

Experts think it is unlikely Iran will escalate the conflict and that it will instead focus on rebuilding Hezbollah and ...

Vice President for Strategic Affairs Mohammad Javad Zarif has said that Iran’s response to Nasrallah’s killing ‘will be ...

Iran lost its most reliable ally in the Middle East when an Israeli airstrike killed Hezbollah leader Hassan Nasrallah. But ...