Israeli Prime Minister Benjamin Netanyahu threatened that Lebanon could face destruction "like Gaza" on Tuesday, as Israel continues to ramp up its offensive on the country.
Netanyahu's stark warning came as the Israeli military deployed more troops and ordered civilians in coastal areas to evacuate.
"You have an opportunity to save Lebanon before it falls into the abyss of a long war that will lead to destruction and suffering like we see in Gaza," Netanyahu said in a video address directed to the people of Lebanon.
"I say to you, the people of Lebanon: Free your country from Hezbollah so that this war can end."
Hezbollah earlier said it fired rockets at the Israeli port city of Haifa, after the Israeli military reported 85 projectiles crossing from Lebanon.
It threatened more rocket fire on Israeli towns and cities if Israel continues bombing population centres in Lebanon.
Israel expanded its offensive on Lebanon nearly a year after Hezbollah and Israel began exchanging fire at the border.
While Israel's war on Gaza continues, Israel has also vowed to secure its northern border with Lebanon to allow tens of thousands of Israelis displaced by cross-border fire to return home.
Both Hamas and Hezbollah have pledged no let-up against Israel, and on Tuesday Hezbollah's deputy leader Naim Qassem said the group would make it impossible for Israelis to return to the north.
Israel launched a wave of strikes in Lebanon on September 23, leaving more than 1,150 people dead since then and forcing more than a million to flee.
Israeli attacks have mainly targeted areas in southern and eastern Lebanon, as well as south Beirut, but more recently have targeted other areas, including Baalbek.
Forced evacuations
Israel's latest evacuation warning suggests it is extending its offensive northwards.
On its Telegram channel, the Israeli military said its 146th Division began "limited, localised, targeted operational activities" against Hezbollah targets and infrastructure in southwestern Lebanon.
A day earlier, the military had warned people to stay away from the southern part of Lebanon's Mediterranean coast, with a spokesman saying Israel would "soon operate in the maritime area against Hezbollah's terrorist activities" south of the Awali river.
In Sidon, fishermen stayed ashore and the seafood market was unusually quiet.
"Fishing was the way we supported our children. If we don't go out to sea, we won't be able to feed ourselves," said fisherman Issam Haboush.
The Israeli military said it hit Hezbollah's south Beirut bastion, where a strike last month killed the group's leader, Hassan Nasrallah.
It later said it dismantled a Hezbollah tunnel leading from Lebanon into Israel.
Hezbollah said it repelled Israeli troops who "infiltrated from behind" a UN peacekeepers' position in the southern border village of Labboune.
Hezbollah's deputy leader said despite Israel's "painful" strikes, the group's leadership structure was in order and its military capabilities were "fine".
Israeli Defence Minister Yoav Gallant said Hezbollah was " a battered and broken organisation, without significant command and fire capabilities, with a disintegrated leadership following the elimination of Hassan Nasrallah".
Gallant had been due to visit Washington for talks on Wednesday with Pentagon chief Lloyd Austin that were expected to focus on Israel's response to Iran's missile attack last week.
But the Pentagon confirmed the visit had been postponed, after Israeli media reported Netanyahu had demanded that the cabinet decide on the action to be taken before the minister's departure.
Israel's war on Gaza has killed 41,965 people, most them civilians, according to the health ministry.
The war has since spread across the wider region, with Israeli forces targeting areas in Lebanon, Yemen and Syria.