The Israeli military has attacked the suburbs of the Lebanese capital, Beirut, in response to Hezbollah's shelling of Israel, Prime Minister Benjamin Netanyahu and Defence Minister Israel Katz said on Sunday.
They said the military had targeted "terrorist" headquarters. Videos from eyewitnesses showed thick plumes of smoke in the densely populated Beirut suburbs known as Dahiyeh, which are considered a stronghold of the Lebanese militia Hezbollah.
Eyewitnesses described severe destruction to several floors of one building.
Israel had significantly scaled back its attacks on Lebanon since an official ceasefire came into effect in mid-April. US President Donald Trump had also announced an agreed halt to Israeli attacks in the area, as well as an end to Hezbollah's attacks on Israel.
However, Israel had threatened to attack these areas again if Hezbollah fired on Israel, forcing the residents of the suburbs to flee once more.
Earlier on Sunday, northern Israel had come under renewed rocket fire from Lebanon, with the Israeli army saying its air defences had intercepted two projectiles that crossed into Israeli territory.
"We will not allow Hezbollah to fire at our territory or our communities – and we will act accordingly," Netanyahu said at the start of a Cabinet meeting on Sunday.
He said the Israeli military had "eliminated 350 terrorists in the past week alone" in Lebanon. "We are striking them very hard, and we know that Hezbollah is on the run."
In recent days, Israel and Lebanon had agreed to a new attempt to implement a ceasefire. But Hezbollah rejected the agreed terms, and shortly afterwards launched fresh attacks.
The Lebanese government is not a party to the conflict and only has limited influence over Hezbollah. The Iran-backed militia was not involved in the ceasefire negotiations.
