Beirut/IBNS:  Moments after Prime Minister Benjamin Netanyahu vowed to keep fighting Hezbollah, Israel carried out fresh air strikes on the south of Lebanon's capital Beirut targeting the militant outfit's headquarters, media reports said.

The strikes, heard across the city, sent huge clouds of smoke soaring above the densely populated south of Beirut.

Israeli military spokesman Daniel Hagari said the strike targeted "the central headquarters" of Hezbollah in the southern suburbs of Beirut.

The bombing came after Netanyahu concluded his address to UN General Assembly delegates in New York, at which he vowed to keep up strikes against Hezbollah and fight "until victory" against Hamas.

Hezbollah and Israel have been involved in a deadly exchange of cross-border fire since the group's Palestinian ally, Hamas, attacked Israel on October 7 last year.

Israel's aerial bombardment of Hezbollah strongholds around Lebanon has killed around 700 people this week alone, according to the health ministry.

"As long as Hezbollah chooses the path of war, Israel has no choice, and Israel has every right to remove this threat and return our citizens to their home safe," Netanyahu told the UN General Assembly, adding that operations against the Iran-backed militant group will "continue until we meet our objectives."

Nearly a year into the war with Hamas in Gaza, Israel shifted its focus to its northern front with Lebanon, with its wave of aerial bombardment sparking an exodus of around 118,000 people.