In a message on Thursday, Zarif condoled with Sayyed Hassan Nasrallah on the tragedy.
He also wished divine mercy for his late sister and patience and divine reward for the survivors.
Iranian Foreign Minister Mohammad Javad Zarif has offered condolences to the Secretary General of Lebanon's Hezbollah Resistance Movement over his sister's death.
In a message on Thursday, Zarif condoled with Sayyed Hassan Nasrallah on the tragedy.
He also wished divine mercy for his late sister and patience and divine reward for the survivors.