Hezbollah did not immediately confirm the death of Ibrahim Aqeel. The United States had accused him of being involved in bombings that killed more than 200 U.S. Marines and many others in Beirut in 1983.

Israel announced it had killed the commander of Hezbollah’s elite unit in a strike on Friday that Lebanese officials said left 12 dead and dozens wounded i

The attack represents another security failure for the militant group that has been reeling from repeated Israeli blows.