Civilians look for survivors in the rubble of a building following an Israeli strike near the Kamal Adwan hospital in Beit Lahia, in the northern Gaza Strip

Lebanon said an Israeli air strike in the heart of Beirut that brought down a residential building and jolted residents across the city killed at least 15 people on Saturday.

A Lebanese security source told AFP that the strike had "targeted a leading Hezbollah figure", but a Hezbollah lawmaker denied any official of the Iran-backed group was present.