Israel killed Hezbollah chief Hassan Nasrallah in a huge air strike in Lebanon, dealing the movement a seismic blow that Prime Minister Benjamin Netanyahu on Saturday called a "turning point" for his country.

Hezbollah confirmed Nasrallah's death after the Israeli military said he had been killed in an air strike Friday on the southern suburbs of Beirut, the Iran-backed group's main bastion.

Some Israelis celebrated his killing, while in Lebanon, his supporters' disbelief gave way to anguished mourning.

Iran is ramping up efforts to interfere with the US election with fake "news" websites and hackers targeting Donald Trump, American officials and researchers say, as the Republican nominee reported threats on his life from the Islamic republic.

Iran, long known for orchestrating clandestine influence operations against its adversaries, has emerged as a top disinformation threat facing the November 5 presidential vote.

US Secretary of State Antony Blinken appealed again Friday for a ceasefire in Lebanon, saying the diplomatic path remained open, even as Israel ignored calls to stop its strikes targeting Hezbollah.

"The choices that both parties make in the coming days will determine which path this region is on, with profound consequences for its people, now and possibly for years to come," Blinken told a news conference as he wrapped up a week of talks at the United Nations.

In just a few seconds, Israeli strikes reduced six buildings to rubble in the Hezbollah stronghold of south Beirut on Friday, sending rescuers scrambling to the densely-packed residential area searching for survivors.

The succesive strikes shook Beirut and its surroundings a little before 6:30 pm (15:30 GMT), leaving panicked residents scrambling for safety.

"I felt like the building was going to collapse on top of me, as if a rocket was going to hit me and kill me," said Abeer Hammoud, who lives in Beirut's southern suburbs.

The United States unveiled charges Friday against three Iranian individuals as it accused Iran of election interference, saying malicious actors had hacked the campaign of former president Donald Trump.

The three defendants were said to have conspired with others to carry out "a years-long, wide ranging hacking operation on behalf of the Islamic Revolutionary Guard Corps (IRGC)," said US Attorney General Merrick Garland.

The operation in recent times targeted individuals associated with US political campaigns.

An Argentine judge has ordered the publishers of a major Spanish dictionary to remove a pejorative definition of the word "Jewish" from its listing, local media reported late Thursday.

The fifth and last definition of the word "Jewish" in the Dictionary of the Spanish Language, which is published by the Royal Spanish Academy (RAE), is of a person said to be "greedy or usurious".

The dictionary cautions that this usage is "offensive or discriminatory".

Two days of attacks by Sudanese paramilitaries on the Darfur city of El-Fasher killed 48 people, a medical source told AFP on Friday, after world leaders appealed for an end to the country's suffering.

Artillery fire from the Rapid Support Forces (RSF) killed 30 people and wounded dozens on Friday alone, a medical source at El-Fasher Teaching Hospital told AFP, as the paramilitaries and regular army vie for control of the North Darfur state capital.

Israeli Prime Minister Benjamin Netanyahu vowed at the UN Friday to press his country's offensive against Lebanon's Hezbollah, dashing hopes for a 21-day truce proposed by France and the United States this week.

Netanyahu's highly anticipated turn at the United Nations, during which he repeatedly denounced the global organization as anti-Israel, was met with jeers by some delegates who walked out, but cheers and applause from his backers.

Tunisia's parliament approved a law on Friday that strips a top court of its power to rule on election-related disputes, a move decried by protesters as anti-democratic just days before a presidential ballot.

The judicial shift comes after Tunisia's administrative court in August overturned decisions barring three presidential hopefuls from running in the October 6 election -- a ruling later ignored by the country's electoral board, ISIE.

Tens of thousands protested in Iranian cities and in the rebel-held Yemeni capital on Friday to condemn Israeli attacks on Lebanon and Gaza, AFP journalists and state media reported.

The demonstrates in Tehran and other Iranian cities were responding to call by authorities on Wednesday to demonstrate in support of the Iran-backed Hezbollah movement in Lebanon "and to condemn the barbaric crimes of the Zionist regime in Palestine," the official IRNA news agency said.