Rabbi Shalom Cohen, the spiritual leader of Israel's largest ultra-Orthodox political party, died in hospital Monday aged 91, his family said, as tens of thousands packed Jerusalem streets for his funeral.

Cohen, who headed the Council of Torah Sages, the highest body in the Shas party, had been at Hadassah hospital in Jerusalem when his health deteriorated on Sunday evening, according to his family.

Shas head Aryeh Deri said he was "heartbroken" over Cohen's death.

Anthony Joshua has admitted "I let myself down" after the British heavyweight's antics following his crushing defeat to Oleksandr Usyk in their world-title showdown in Saudi Arabia were heavily criticised.

Joshua hurled two of Usyk's belts to the floor and stormed out of the ring in a fit of pique in Jeddah, then returned moments later to deliver a rambling speech peppered with expletives.

The 32-year-old's career appears at a crossroads after Sunday's second successive defeat to the unbeaten Ukrainian and he came under fire for his emotional post-fight reaction.

The United Arab Emirates said Sunday that its ambassador to Tehran would resume duties within days, six years after ties were downgraded in support of Saudi Arabia.

Ambassador Saif Mohammed al-Zaabi "will resume his duties at the UAE embassy in the Islamic republic of Iran in the coming days to contribute to further advancing bilateral relations", the Emirati foreign ministry said in a statement.

The move seeks to "achieve the common interests of the two countries and the wider region", it added.

Israel's NSO Group, which makes Pegasus spyware that is controversial worldwide, said Sunday its CEO was leaving his post as part of a reorganisation.

The indebted, privately owned company also said it would focus sales on countries belonging to the NATO alliance.

In July last year, a multinational journalistic investigation revealed that Pegasus spyware had been sold by NSO to governments around the world and used against human rights activists, politicians, reporters and others.

Saudi Arabia sees hosting an Olympics as its "ultimate goal" in a growing sports portfolio, its sports minister told AFP, while rejecting criticism of the kingdom over its rights record.

Investing in sport is part of a multi-pronged strategy approved six years ago to diversify the oil-reliant economy, under de facto ruler Crown Prince Mohammed bin Salman, 36.

Rescue workers searched through the rubble of a Shiite Muslim shrine in central Iraq into Sunday night, after a landslide killed at least five people including a child.

After more than 24 hours of digging through collapsed rocks, wood and other debris, "we have found five bodies," civil defence General Abdelrahman Jawdat told AFP.

"That could be the final toll," he added, while digging continued in case there were other victims.

Iraqi rescue workers were Sunday battling to free at least six pilgrims trapped under rubble after a landslide hit a Shiite Muslim shrine in the central province of Karbala.

Three children had been rescued since Saturday's disaster, emergency services said, adding that they were in "good condition" and being monitored in a hospital.

But it was feared that "between six and eight people are still caught" under the rubble of the shrine, known as Qattarat al-Imam Ali, civil defence spokesman Nawas Sabah Shaker told AFP.

Ukraine's Oleksandr Usyk won his rematch against Anthony Joshua by split decision to set up a potential unification bout with Britain's Tyson Fury in Saudi Arabia on Saturday.

The former cruiserweight world champion, who dismantled the holder in London last year, faced an improved Joshua but outboxed him once again in just his fourth heavyweight bout.

Usyk, now unbeaten at 20-0 immediately called out Fury, who announced his latest retirement earlier this month but has signalled his willingness to resume his career.

At least 34 people were killed and dozens injured in two separate road accidents Saturday, each in places where collisions had taken place shortly before, local media reported.

A first crash involving a bus and an ambulance killed 15 people and injured 31 more on a motorway in Gaziantep province, said local officials, revising an earlier toll of 16.

Governor Davut Gul said earlier the accident had involved "a bus, an emergency team and an ambulance" on the route between provincial capital Gaziantep and Nizip.

Somali-born Briton Ramla Ali won the first professional women's boxing match held in Saudi Arabia with a spectacular first-round knock-out of Crystal Garcia Nova on Saturday.

Just seconds into the fight, after already connecting with heavy shots to the head and body, Ali sent Nova's gumshield flying with a fierce right that slammed into the Dominican fighter's jaw.

"I feel like I need to go back and do some more pads. I didn't really get out of first gear," said the 32-year-old at King Abdullah Sports City in Jeddah, adding: "It's cool to get the stoppage."