Hezbollah officially confirmed the death of Hezbollah leader Hassan Nasrallah, the movement said in a statement.
"His Eminence, the Master of Resistance, the righteous servant, has passed away to be with his Lord and to His pleasure as a great martyr, a heroic, daring, brave, wise, insightful, and faithful leader, joining the caravan of martyrs of the eternal, luminous Karbala in the divine, faith-based path in the footsteps of the prophets and martyred imams", Hezbollah said in a statement.
The IDF said on Saturday that it had continued targeting Hezbollah infrastructure in Lebanon.
Since Friday night, Israeli forces have struck over 140 targets, including "launchers aimed at Israeli civilians, buildings in which weapons were stored, strategic weaponry, weapons production facilities, and additional terrorist infrastructure sites, some embedded underneath residential buildings in the area of Beirut," the IDF said.
On Friday, Israel carried out a massive airstrike on the main Hezbollah headquarters in the southern suburbs of Beirut. Six residential buildings were destroyed in the attack, Lebanese media reported.
The Israeli air force launched a strike on the Hezbollah Central Headquarters, located under a residential building in a suburb of Beirut, according to the IDF.
Born in 1960 in the suburbs of Beirut, Nasrallah studied at a Shia seminary in the Lebanese city of Baalbek and joined Hezbollah as it was formed in 1985.
Nasrallah became the leader of the movement after his predecessor and Hezbollah co-founder, Abbas Al Musawi, was assassinated in an Israeli airstrike in 1992.
Under Nasrallah's leadership, Hezbollah acquired long-range rockets capable of reaching northern Israel, aided its ally Syria against Western-backed insurgents and gained popularity in the region.