Lebanon's Hezbollah fired heavy rocket barrages at Israel on Sunday, with Israeli media reporting that a building had been hit near Tel Aviv, after a powerful Israeli airstrike killed at least 29 people in Beirut the day before.
The Israeli military said Hezbollah had fired 170 rockets at Israel on Sunday, of which many were intercepted.
Israel also struck Beirut's southern suburbs, where intensified bombardment over the last two weeks has coincided with signs of progress in US-led ceasefire talks.
Lebanon's health ministry on Sunday raised the death toll from 20 to 29. It said 84 people had been killed in all on Saturday, taking the death toll to 3,754 since October 2023.
Israel strikes continued to pound the Gaza Strip on Sunday, striking residential areas in the north, central and southern areas of the territory.
Seven Palestinians, including four children, were killed and several others injured in overnight airstrikes on the al-Maghazi and al-Bureij refugee camps in the central Gaza Strip, Palestinian media reported.
Later on Sunday, an Israeli drone strike killed at least one Palestinian in the Khirbet al-Adas area in Rafah, Al Jazeera reported.
The strikes come as Palestinians were forced to flee the Shujaiya neighbourhood in eastern Gaza City, after Israeli forces issued evacuation orders and threats that the neighbourhood could become a "dangerous combat zone".
Witnesses said scores of families fled on foot in the dark, carrying whatever belongings they could manage.
This comes after Gaza's civil defence agency said on Sunday a drone strike overnight seriously injured a hospital chief in an attack on the healthcare facility.
Hossam Abu Safiya suffered an injury to his back and left thigh by metal fragments after an attack on the hospital complex, civil defence agency spokesman Mahmud Bassal told AFP.
After losing a lot of blood, the doctor was in a "stable" condition, Bassal said, adding an Israeli drone bombed the hospital in Beit Lahia, north Gaza.