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

Israel said it killed a top commander with Hezbollah’s missile and rocket unit Tuesday as the Israeli military traded fire with Hezbollah again and the death toll from a massive Israeli bombardment climbed to nearly 560 people.

A previous Israeli strike on Hezbollah’s underground headquarters in Beirut was responsible for killing leader Hassan Nasrallah.