The conclave to elect Pope Francis’s successor will begin on 7 May, the Vatican has announced.
Some 135 cardinal electors – those under the age of 80 – will take part and vote for the new pontiff.
The rituals of the event, held in the Sistine Chapel, are elaborate and date back centuries. So how does the process work?
When Pope Francis died, the Catholic Church entered a period known as “sede vacante”, meaning “empty seat”.
His ring and seal – used to dispatch papal documents – were broken to prevent anyone else from using them.
Cardinal Kevin Farrell – the Camerlengo, or chamberlain, who announced Francis’s death – became the interim chief of the Catholic Church.
Image: Pic: Reuters
The conclave
Cardinals travel to Rome from all over the world and stay until a new pope is chosen.
Of the 252 current ones, there are 135 cardinal electors: 53 from Europe; 23 from Asia; 20 from North America; 18 from Africa; 17 from South America; and four from Oceania.
Italy has the most cardinals who can vote, with 17, while the US has 10 and Brazil has seven. The UK has three.
Image: A papal crest dedicated to Pope Pius XII. Pic: Reuters
Once the conclave begins, the cardinals will not emerge from the Vatican until a new pope has been chosen. The word “conclave” comes from Latin, meaning “with key” – a reference to the isolation in which the cardinals are kept.
While holding voting sessions in the Sistine Chapel, they sleep in the Casa Santa Marta – a guesthouse inside the Vatican’s grounds.
The longest conclave lasted almost three years, between 1268 and 1271. Several have lasted only one day. The one which elected Pope John Paul in 1978 lasted less than three days. Cardinals chose Pope Francis in around two days.
While the conclave is ongoing, cardinals are unable to communicate with the outside world. No telephones, internet use or newspapers are allowed.
Except for the first day, when only one ballot is held, the cardinals hold two daily votes until one candidate has a majority of two-thirds plus one. They are sworn to secrecy about the voting.
White smoke?
So how do we know if a decision has been reached? Yes, this is the black smoke, white smoke part.
If the cardinals have not reached a majority, the cards and the tally sheets are placed in a stove and burned with an additive to produce black smoke, showing the outside world that a pope has not yet been chosen.
Image: No pope yet… black smoke rising from the Sistine Chapel. Pic: Reuters
Watching for the tell-tale smoke arising from the top of the Sistine Chapel is a tradition, with Catholics crowding into St Peter’s Square for the spectacle.
If no result has been reached after three days, the sessions are suspended for a day to allow for prayer and discussion. More ballots are held until a two-thirds majority is reached.
When enough cardinals have agreed on a candidate, he is asked if he accepts the papacy and by which name he wishes to be known.
The ballots are burned as before, but with an additive to produce white smoke.
Image: A Papal white skull cap. Pic: Reuters
New pope proclaimed
The new pope then dons his new papal vestments – tailors keep large, medium and small sizes ready – and sits on a throne in the Sistine Chapel to receive the other cardinals who file up to pay homage and swear obedience to the church’s new leader.
The senior cardinal deacon then steps out on to the central balcony of St Peter’s Basilica overlooking the square and announces in Latin: “Annuntio vobis gaudium magnum. Habemus Papam” (I announce to you a great joy. We have a pope) and reveals the cardinal’s name and the name he has chosen.
They rose to their feet in ecstatic surprise, shouting “heydar, heydar” – a Shia victory chant.
This was the first public appearance of their supreme leader since Israel began attacking their country.
He emerged during evening prayers in his private compound. He said nothing but looked stern and resolute as he waved to the crowd.
He has spent the last weeks sequestered in a bunker, it is assumed, for his safety following numerous death threats from Israel and the US.
His re-emergence suggests a return to normality and a sense of defiance that we have witnessed here on the streets of Tehran too.
Earlier, we had filmed as men in black marched through the streets of the capital to the sound of mournful chants and the slow beat of drums, whipping their backs with metal flails.
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1:39
Defiance on streets of Tehran
This weekend they mark the Shia festival of Ashura as they have for 14 centuries. But this year has poignant significance for Iranians far more than most.
The devout remember the betrayal and death of Imam Hussein as if it happened yesterday. We filmed men and women weeping as they worshipped at the Imamzadeh Saleh Shrine in northern Tehran.
The armies of the Caliph Yazid killed the grandson of the Prophet Muhammad in the seventh-century Battle of Karbala.
Shiite Muslims mark the anniversary every year and reflect on the virtue it celebrates, of resistance against oppression and injustice.
But more so than ever in the wake of Israel and America’s attacks on their country.
The story is one of prevailing over adversity and deception. A sense of betrayal is keenly felt here among people and officials.
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Many Iranians believe they were lured into pursuing diplomacy as part of a ruse by the US.
Iran believed it was making diplomatic progress in talks with America it hoped could lead to a deal. Then Israel launched its attacks and, instead of condemning them, the US joined in.
Death to Israel chants resounded outside the mosque in skies which were filled for 12 days with the sounds of Israeli jets. There is a renewed sense of defiance here.
One man told us: “The lesson to be learned from Hussein is not to give in to oppression even if it is the most powerful force in the world.”
A woman was dismissive about the US president. “I don’t think about Trump, nobody likes him. He always wants to attack too many countries.”
Pictures on billboards nearby draw a line between Imam Hussein’s story and current events. The seventh-century imam on horseback alongside images of modern missiles and drones from the present day.
Other huge signs remember the dead. Iran says almost 1,000 people were killed in the strikes, many of them women and children.
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Officially Iran is projecting defiance but not closing the door to diplomacy.
Government spokeswoman Dr Fatemeh Mohajerani told Sky News that Israel should not even think about attacking again.
“We are very strong in defence and as state officials have announced, this time Israel will receive an even stronger response compared to previous times,” she said.
“We hope that Israel will not make such a mistake.”
But there is also a hint of conciliation: Senior Iranian officials have told Sky News that back-channel efforts are under way to explore new talks with the US.
Israel had hoped its attacks could topple the Iranian leadership. That proved unfounded, the government is in control here.
For many Iranians, it seems quite the opposite happened – the 12-day war has brought them closer together.
To the sound of mournful chants and the slow beat of drums, they march, whipping their backs with metal flails.
It is an ancient ceremony going back almost 14 centuries – the Shia commemoration of Ashura.
But this year in particular has poignant significance for Iranians.
The devout remember the betrayal and death of the Imam Hussein as if it happened yesterday.
Image: Iranians gather ahead of Ashura
We filmed men and women weep as they worshipped at the Imamzadeh Saleh Shrine in northern Tehran.
The grandson of the Prophet Muhammad was killed by the armies of the Caliph Yazid in the seventh century Battle of Karbala.
More on Iran
Related Topics:
Shia Muslims mark the anniversary every year and reflect on the virtue it celebrates – of resistance against oppression and injustice. But more so than ever this year, in the wake of Israel and America’s attacks on their country.
The story is one of prevailing over adversity and deception. A sense of betrayal is keenly felt here by people and officials.
Image: Men and women weeped as they worshipped at the Imamzadeh Saleh Shrine
Many Iranians believe they were lured into pursuing diplomacy as part of a ruse by the US.
Iran believed it was making diplomatic progress in talks with America, which it hoped could lead to a deal. Then Israellaunched its attacks and, instead of condemning them, the US joined in.
“Death to Israel” chants resounded outside the mosque in skies that for 12 days were filled with the sounds of Israeli jets.
There is a renewed sense of defiance here.
One man told us: “The lesson to be learned from Hussein is not to give in to oppression, even if it is the most powerful force in the world.”
Image: ‘I don’t think about Trump. Nobody likes him,’ one woman tells Sky News
A woman was dismissive about the US president.
“I don’t think about Trump. Nobody likes him. He always wants to attack too many countries.”
Pictures on billboards nearby link Imam Hussein’s story and current events. They show the seventh century imam on horseback alongside images of modern missiles and drones from the present day.
Other huge signs remember the dead. Iran says almost 1,000 people were killed in the strikes, many of them women and children.
Officially Iran is projecting defiance, but not closing the door to diplomacy.
Government spokeswoman Dr Fatemeh Mohajerani told Sky News that Israel should not even think about attacking again.
“We are very strong in defence, and as state officials have announced, this time Israel will receive an even stronger response compared to previous times. We hope that Israel will not make such a mistake.”
Image: Dr Fatemeh Mohajerani said it would be a mistake for Israel to attack again
But there is also a hint of conciliation. Senior Iranian officials have told Sky News back-channel efforts are under way to explore new talks with the US.
Israel had hoped its attacks could topple the Iranian leadership. Those hopes proved unfounded. The government is in control here.
For many Iranians it seems quite the opposite happened – the 12-day war has brought them closer together.
Two American security workers in Gaza were injured after grenades were thrown during food distribution in Khan Younis, the Gaza Humanitarian Foundation (GHF) has said.
In a statement, the US and Israeli-backed aid group said a targeted terrorist attack was carried out at one of its sites in southern Gazaon Saturday morning.
The two Americans injured “are receiving medical treatment and are in stable condition,” it said, adding that the delivery of aid was “otherwise successful” and that “no local aid workers or civilians were harmed”.
GHF didn’t say exactly when the incident happened but claimed Hamaswas behind the attack, adding: “GHF has repeatedly warned of credible threats from Hamas, including explicit plans to target American personnel, Palestinian aid workers, and the civilians who rely on our sites for food.
“Today’s attack tragically affirms those warnings.”
Later, the aid group posted a picture on social media, which it said showed “fragments of a grenade packed with ball bearings” that was used in the attack.
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Asked by Sky’s US partner network, NBC News, whether the two injured individuals were responsible for handing out aid or were responsible for providing security, GHF said they were “American security workers” and “two American veterans.”
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The aid group did not provide specific evidence that Hamas was behind the attack.
The US and Israeli-backed group has been primarily responsible for aid distribution since Israel lifted its 11-week blockade of the Gaza Strip in May.
According to Gaza’s health ministry, 600 Palestinians have been killed while seeking aid from GHF sites as of 3 July, which charities and the UN have branded “death traps”.
Meanwhile, the Associated Press has reported that Israeli-backed American contractors guarding GHF aid centres in Gaza are using live ammunition and stun grenades.
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Contractors allege colleagues ‘fired on Palestinians’
GHF has vehemently denied the accusations, adding that it investigated AP’s allegations and found them to be “categorically false”.
Israel’s military added that it fires only warning shots and is investigating reports of civilian harm.
It denies deliberately shooting at any innocent civilians and says it’s examining how to reduce “friction with the population” in the areas surrounding the distribution centres.