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

Israel has killed Hezbollah's leader - but this may bring the region one step closer to a much wider conflict.

Iran's Supreme Leader Ayatollah Ali Khamenei was placed in a secure location after Hezbollah leader Hassan Nasrallah's killing in Lebanon.

Tensions in the Middle East have escalated dramatically after Israeli airstrikes killed Hezbollah leader, Hassan Nasrallah ...

Iran perceives the assassination of Hassan Nasrallah as a significant humiliation, marking the second severe loss for the ...

Hezbollah has confirmed the death of its leader Hassan Nasrallah, as fears grow of the conflict at the Israel-Lebanon border ...

Iran vowed revenge Sunday over Israel’s killing of a top Revolutionary Guard official in Friday’s major Beirut strike that also resulted in the assassination of Hezbollah chief Hassan Nasrallah.

Araghchi's remarks came two days after the Friday strike on Iran-backed Hezbollah's bastion in the Lebanese capital that ...

Netanyahu may dream of bringing about a new regional order in the Middle East. But regional chaos — with the all the dangers ...

Supreme Leader Ayatollah Ali Khamenei has been taken to a secure location inside Iran amid heightened security, sources told ...

An Iranian mole revealed Hezbollah leader Hassan Nasrallah's location to Israeli authorities, resulting in a significant ...

The Israeli military said Sunday it killed Nabil Kaouk, another high-ranking Hezbollah official, a day after the Lebanese militant group confirmed the death of multiple commanders, including longtime ...