News sources said Israeli warplanes targeted a three-story residential building in the town of Sair al-Gharbiya in the Nabatieh district, completely destroying the structure and causing the deaths of the civilians.
Meanwhile, the Quds news network reported that videos and images circulating online show extensive destruction in a residential neighborhood following the airstrike.
Due to the scale of the damage, civil defense and emergency teams have faced difficulties searching for survivors and retrieving victims from beneath the rubble, the report added.
In a broader development, reports also said Israeli warplanes launched additional strikes during the early hours of Sunday on several towns in southern Lebanon.