The head of Hezbollah threatened Israel on Wednesday, saying the Lebanese terrorist group is not afraid of war following a drone strike Tuesday that killed a senior Hamas leader in Beirut.

Hezbollah leader Sayyed Hassan Nasrallah called the killing of Saleh Arouri, the founder of Hamas’ military wing, a “flagrant Israeli aggression” and “a major, dangerous crime about which we cannot be silent” during a televised speech reported by Reuters.

Nasrallah reportedly addressed Israeli Defense Minister Yoav Gallant, saying the Jewish state “will not succeed in achieving the war’s goals.”