An Israeli strike on a densely populated district of Beirut on Sunday killed Hezbollah's media relations chief Mohammad Afif, two Lebanese security sources told Reuters.
The strike hit Ras el-Nabaa, a neighborhood where many people displaced from Beirut's southern suburbs had been seeking refuge.
The security sources said it struck a building where the offices of the Baath Party are located, and the head of the party in Lebanon, Ali Hijazi, told a local TV station that Afif was in the building.
The Lebanese health ministry said the strike killed one and injured three.