Israel ordered residents of three areas in the capital's southern suburbs to leave ahead of planned strikes on multiple buildings, in a warning published on X by military spokesman Avichay Adraee.
Lisa Golden with Raziye Akkoc in Occupied Jerusalem Israel issued evacuation orders on Sunday for parts of south Beirut where it is targeting Hizbollah fighters, hours after the Iran-backed group said it fired on several Israeli military bases around the coastal city of Haifa.
Further south, overnight Israeli airstrikes and artillery shelling hit the flashpoint southern town of Khiam, some six kilometres (four miles) from the border, Lebanon's state-run National News Agency reported early on Sunday.
The bombardment came after Israel's military reported a "heavy rocket barrage" on Haifa late on Saturday and said a synagogue was hit, wounding two civilians.
Israel has escalated its bombing of Lebanon since September 23 and has since sent in ground troops, following almost a year of limited, cross-border exchanges of fire begun by Iran-backed Hizbollah fighters in support of Hamas in Gaza.
In the Palestinian territory the civil defence agency reported 24 people killed in strikes on Saturday.
Security services in Israel said two flares landed near Prime Minister Benjamin Netanyahu's residence in the town of Caesarea, south of Haifa, but he was not home.
The incident comes about a month after a drone targeted the same residence, which Hizbollah claimed.
Israel's military chief said on Saturday Hizbollah had already "paid a big price", but Israel will keep fighting until tens of thousands of its residents displaced from the north can return safely.
AFPTV footage showed fresh strikes Saturday on the southern suburbs of Beirut, a Hizbollah stronghold, after Israel's military told residents to leave.
The Israeli military said aircraft had targeted "a weapons storage facility" and a Hizbollah "command centre".
Hizbollah fired around 80 projectiles at Israel on Saturday, the military said.
Lebanon rescuers mourned
Israeli forces also shelled the area along the Litani River, which flows across southern Lebanon, NNA said on Sunday.
The agency earlier reported strikes on the southern city of Tyre, including in a neighbourhood near UNESCO-listed ancient ruins. Israel's military late Saturday said it had hit Hizbollah facilities in the Tyre area.
In Lebanon's east, the health ministry said an Israeli strike in the Bekaa Valley killed six people including three children.
Hizbollah said it fired a guided missile that set an Israeli tank ablaze in the southwest Lebanon village of Shamaa, about five kilometres from the border.
Late on Saturday, Hizbollah said it had targeted five military bases including the Stella Maris naval base.
In eastern Lebanon, funerals were held for 14 civil defence staff killed in an Israeli strike on Thursday.
"They weren't involved with any (armed) party... they were just waiting to answer calls for help," said Ali Al Zein, a relative of one of the dead.
Lebanese authorities say more than 3,452 people have been killed since October last year, with most casualties recorded since September.
Israel announced the death of a soldier in southern Lebanon, bringing to 48 the number killed fighting Hizbollah.
Agence France-Presse