U.N. chief Antonio Guterres called on Israel and Iran-backed Hezbollah to "stop the war" at the start of a visit to Beirut on Friday, as Israel expanded its strikes across the country.

Australia has ordered all non-essential officials in Lebanon to leave, Canberra's foreign minister said Friday, after issuing the same command to diplomats in Israel and the United Arab Emirates.

In a post on X, top diplomat Penny Wong said they had been ordered to depart due to the "deteriorating security situation".

The Israeli army warned Friday the residents of Dahieh to evacuate, as it struck several regions in Beirut and the country's south and east.

In Beirut, a strike targeted an apartment in Burj Hammoud's Nabaa, and another strike targeted a car in Jnah, a coastal neighborhood in southwestern Beirut, killing one person.

Israel renewed its strikes on Beirut on Thursday, as it threatened to seize territory in Lebanon if Hezbollah did not stop its attacks.

The Israeli military announced "a wave of strikes targeting Hezbollah terrorist infrastructure across Beirut", with AFPTV footage showing dark smoke rising into the sky above two districts in the heart of Beirut.

Israeli Prime Minister Benjamin Netanyahu said Thursday that he had warned Lebanon's government that Israel would act to disarm Hezbollah "on the ground" if Beirut failed to do so.

"I told the Lebanese government a few days ago: you are playing with fire if you continue allowing Hezbollah to operate, in violation of your commitment to disarm it," Netanyahu told a press conference.

U.S. President Donald Trump on Thursday said that stopping Iran from getting nuclear weapons was more important to him than controlling oil prices.

An Israeli strike on a campus of Lebanon's public university killed two academics.

The director of the faculty of sciences at the south Beirut campus of the Lebanese University, Hussein Bazzi, and professor Mortada Srour were killed by an Israeli drone strike on the university, the National News Agency said.

The Israeli military said it had begun a wave of strikes across Beirut on Thursday, after it warned residents of a central neighborhood of the Lebanese capital it would target a building there.

"The IDF has begun a wave of strikes targeting Hezbollah terrorist infrastructure across Beirut," a military statement said, as AFPTV footage showed a strike hitting the central Beirut building in Bashoura.

Missiles hit a building in the Beirut neighborhood of Bashoura, near the center of the city, on Thursday, after the Israeli military issued a warning of an incoming strike.

An AFPTV live broadcast showed dark smoke rising into the sky above the heart of the Lebanese capital, and an apparent fire started by the first missile impact.

Iran's new supreme leader Mojtaba Khamenei thanked Tehran's allied armed groups across the region including in Lebanon, Iraq and Yemen on Thursday.

"I also express my sincere gratitude to the fighters of the 'Resistance Front'," Khamenei said in a statement read by a news anchor on state television, referring to the Houthis in Yemen, Lebanon's Hezbollah as well as allied groups in Iraq.