TEL AVIV, ISRAEL (AP) - 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. If the claim is true, Nasrallah is by far the most powerful target to be killed by Israel in weeks of intensified fighting with Hezbollah. The military said it carried out a precise airstrike on Friday while Hezbollah leadership met at their headquarters in Dahiyeh, south of Beirut. Israel’s Chief of Staff, Lt. Gen. Herzi Halevi, said Saturday that the elimination of Nasrallah was “not the end of our toolbox,” indicating that more strikes were planned. He said that the strike targeting Hezbollah leadership was the result of a long period of preparation. The Lebanese Health Ministry said six people were killed and 91 injured in the strikes Friday, which leveled six apartment buildings. Ali Karki, the Commander of Hezbollah’s Southern Front, and additional Hezbollah commanders, were also killed in the attack, the Israeli military said.