He is the son of assassinated Supreme Leader Ayatollah Ali Khamenei.
President Donald Trump announced "major combat operations" against Iran on Feb. 28, with massive joint U.S.-Israel strikes attack targeting military and government sites, officials said.
Iranian state television confirmed that Ayatollah Ali Khamenei was among those killed by airstrikes in Tehran on the first day of strikes. His successor is yet to be named.
Iran is responding to the operation with missile and drone attacks targeting Israel, regional U.S. bases and multiple Gulf nations. Israel is also intensifying its long-running strike campaign against the Iran-backed Hezbollah militia in Lebanon.
(Read previous Iran live updates here.)
Watch special coverage on Nightline, "War with Iran," each night on ABC and streaming on Disney+ and Hulu.
Qatar's military intercepted a missile attack that targeted the country, the Ministry of Defense said in a post on X.
Emergency alerts went out to cell phones in Qatar, an ABC News team on the ground can confirm.
Israeli ground troops that infiltrated the town of Nabi Chit in eastern Lebanon overnight wore "military uniforms similar to those of the Lebanese army," the commander of the Lebanese Armed Forces, Gen. Rodolphe Haykal, said Saturday.
Haykal noted that the Lebanese army has "reinforced its deployment" along the Lebanese-Syrian border region and is "maintaining communication with the relevant Syrian authorities," according to the press release.
He also warned that the Lebanese army in the south of the country is "operating under extremely difficult circumstances amidst escalating Israeli attacks." He said the army is redeploying forces in the Lebanese-Israeli border region and repositioning units within the area south of the Litani River, where the Israeli military has issued forced evacuations for all residents.
"The army is giving considerable attention to addressing the displacement of citizens, providing them with all possible support, protecting shelters, and maintaining security in their vicinity through exceptional security measures," Haykal said in the statement.
-ABC News' Ghazi Balkiz
At least 294 people have been killed and 1,023 others injured in Israeli attacks on Lebanon since Monday, according to the Lebanese Ministry of Public Health.
-ABC News' Ghazi Balkiz
The Israel Defense Forces on Saturday issued a second "urgent warning" to residents south of the Litani River in southern Lebanon -- a vast area -- ordering them to evacuate "immediately" and head north of the river.
"Remaining south of the Litani River may endanger your lives and the lives of your families," the IDF said in a post in Arabic on X.
-ABC News' Ghazi Balkiz
