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.

Israel said Saturday that it killed Hezbollah leader Hassan Nasrallah, dealing its most significant blow to the Lebanese militant group after months of fighting. There was no immediate confirmation from Hezbollah.

Tensions across the Middle East only continue to escalate after Israeli strikes killed much of Hezbollah's top command in Lebanon.