American-manufactured 2,000-pound bombs were likely used in the Israeli attack that killed Hezbollah’s leader, Hassan Nasrallah, in Beirut on Friday night, according to a review of footage showing the operation and its aftermath by CNN and munitions experts.

Hezbollah leader Hassan Nasrallah, who led the terror group for more than 30 years, was killed in an Israeli airstrike. Nasrallah, 64, was killed during a massive airstrike on the Iran-backed group's "central headquarters" in Beirut, Lebanon on Friday, the Israel Defense Forces said in a statement.

Israel warned Monday it could send in troops to fight Hezbollah, warning the battle was not over despite the killing of the Iran-backed militants' leader in an air strike.