In the week since, Israel has retaliated by bombing Gaza, from where the militants launched the attack.
Civilians have been caught up in the reprisals, as they try to flee south and thousands have died on both sides of the conflict.
Israel’s prime minister, Benjamin Netanyahu, has said the “next stage” of the country’s response is coming – with a ground offensive, supported by air and sea attacks, expected on Gaza.
Speaking on Saturday evening, Mr Sunak defended Israel’s right to defend itself, saying: “We stand with Israel, not just today, not just tomorrow, but always.”
“And I stand with you, the British Jewish community, not just today, not just tomorrow, but always.
“Am Yisrael Chai,” he added.
Am Yisrael Chai translates as ‘the people of Israel live’.
Mr Sunak said that he knew the coming days and weeks would be “very difficult”.
“No words can begin to describe the horror and barbarism unleashed in Israel a week ago,” he said. “Daughters, sons, mothers, fathers, husbands, wives, grandparents taken from people in the cruellest and most horrific way possible.
“Hundreds of people have been killed, many wounded or missing and others living through the unimaginable agony of having a loved one kidnapped and held hostage.
“British citizens were among the victims. And as we continue to learn more, I know there are families here and in Israel in deep pain and torment.
“My thoughts and my heart go out to everyone suffering in the wake of these attacks.”
‘We will do everything to protect Jewish people’
Mr Sunak also offered a message to the people of Israel.
“Britain is with you,” he said.
“What took place was an act of pure evil and Israel has every right to defend itself. We will do everything we can to support Israel in restoring the security it deserves.”
He told the British Jewish community: “I know you are hurting and reeling from these vile terrorist acts.
“At moments like this, when Jewish people are under attack in their homeland, Jewish people everywhere can feel less safe.
“We’ve seen intimidating behaviour and shameful antisemitism online and on our streets with attempts to stir up tensions.
“I say, not here.
“Not in Britain. Not in our country. Not in this century.
“We will do everything we possibly can to protect Jewish people in our country.
“And if anything is standing in the way of keeping the Jewish community safe, we will fix it.”
Labour leader Sir Keir Starmer also marked a week since the Hamas attack, while calling for safe humanitarian corridors for Palestinians in Gaza fleeing violence.
He said: “A week ago we awoke to the unimaginable and heartbreaking news of terrorist attacks on Israel from Gaza by Hamas.
“In the days that have followed, we have heard horrific stories of the murder and mutilation of men, women and children, along with the horror of hostage-taking.
“Israel has the right, indeed the duty, to defend herself and rescue these hostages. Responsibility for what has happened sits with the terrorists of Hamas; and we repeat our call for Hamas to release all hostages.
“I’ve met with members of the British Jewish community this week and told them that we stand with Israel and with them at this time.”
Image: Labour leader Sir Keir Starmer says goodbye to Rabbi Eli Levin after visiting the South Hampstead Synagogue, London. Picture date: Thursday October 12, 2023.
Sir Keir added: “I know this is a distressing and worrying time and welcome the extra funding for the CST (Community Security Trust).
“There must be zero tolerance of any increase in antisemitism or Islamophobia.
“Hamas has no interest in peace. No interest in protecting Palestinians.
“We call on all parties to act in line with international law, including allowing humanitarian access of food, water, electricity and medicines to Gaza and ensuring safe humanitarian corridors in Gaza for those fleeing violence.
“Seven days on from the darkest day in Israel’s recent history, our resolve in the face of terrorism will not falter.”
Three men have been jailed for a combined total of 99 years for plotting to murder a member of a gang that carried out Britain’s biggest-ever cash robbery.
Paul Allen, 46, was shot twice as he stood in his kitchen in Woodford, east London, on 11 July 2019.
He was a member of the Securitas heist gang that stole £54m from a cash depot in Tonbridge, Kent, in 2006.
The former cage fighter was living in a large detached rented house with his partner and three young children after being released from an 18-year prison sentence over the raid.
The attack at his home has left him paralysed from the chest down.
Louis Ahearne, 36, Stewart Ahearne, 46, and Daniel Kelly, 46, denied conspiring to murder Allen but were found guilty last month following a trial at the Old Bailey.
The trio were sentenced at the Old Bailey in central London on Friday.
Kelly was sentenced to 36 years in prison and an extra five years on licence, Louis Ahearne was jailed for 33 years, and his sibling Stewart Ahearne – 30 years.
Image: Damage to the kitchen door. Pic: Met Police/PA
Image: A bullet casing found in the back garden. Pic: Met Police
Prosecutors did not give a motive for the murder plot, though they described the victim as a “sophisticated” career criminal.
Detectives said the shooting could seem like “the plot [of] a Hollywood blockbuster” but added it was actually “horrific criminality” from “hardened organised criminals”.
In her sentencing remarks, the judge said she believed the trio “were motivated by a promise of financial gain”.
Judge Sarah Whitehouse KC said: “I have no doubt that this agreement to murder Paul Allen involved other people apart from the three of you and that you three were motivated by a promise of financial gain.
“The culpability of each one of you is very high.
“The harm caused to the victim was very serious – indeed, short of killing him it could hardly be more serious. He is currently paralysed and relies on others for every single need.”
The shooting was just the latest act in a long list of criminal deeds. The day before, Kelly and Louise Ahearne used a rented car to carry out a burglary in Kent, accessing the gated community by pretending to be police officers.
A month before that, the trio had stolen more than $3.5m (£2.78m) worth of Ming dynasty antiques from the Museum of Far Eastern Arts in Geneva, for which the Ahearne brothers had been jailed in Switzerland.
Kelly is also wanted in Japan over the robbery of a Tokyo jewellery store in 2015 in which a security guard was punched in the face.
A man has been jailed for life for the murder of university lecturer Claire Chick.
Paul Butler was sentenced to a minimum term of 27 years for killing his estranged wife after a six-month campaign of stalking and harassment when he refused to accept their relationship was over.
Ms Chick, 48, was found seriously injured on West Hoe Road in Plymouth just before 9pm on 22 January. She was taken to hospital, but died the next day.
Previously known as Claire Butler, Ms Chick worked at the University of Plymouth.
Image: Paul Butler has been jailed for murder. Pic: Devon & Cornwall Police
She died after a frenzied attack outside her home – the attack a culmination of months of harassment, stalking and violence at the hands of Butler.
Following her death, Devon and Cornwall Police made a referral to the police watchdog due to previous contact prior to her death.
Jo Martin KC, prosecuting, said Ms Chick had made six statements to the police about Butler and he had been arrested three times.
More on Cornwall
Related Topics:
In her final statement to police the day before he killed her outside her own home, she said: “I only feel that Butler will kill me if further action is not taken. I am in fear of leaving my house.”
Butler was arrested around 20 miles away in the Liskeard area on 24 January.
He was sentenced on Friday at Plymouth Crown Court, having previously pleaded guilty to murder, and to one charge of possession of a bladed article.
‘I loved Claire’
The family of Ms Chick told the court how her murder left a “huge void” in their lives.
Her eldest daughter, Bethany Hancock-Baxter, described Butler as “evil”.
She said: “I want this evil man to listen to me. I want you to know what you have done to us as a family.
“Despite all the hate I have for you, I cannot bring myself to do what you did to my mum – that’s because I am not evil like you.”
Her sister, Lydia Peers, said Butler was a “parasite”.
After her short-lived marriage to Butler, Ms Chick began a relationship with another man, Paul Maxwell.
Mr Maxwell spoke from the witness box and repeatedly stared at the defendant as he spoke. Butler stared back at him.
“I loved Claire. She was beautiful, funny and kind,” Mr Maxwell said.
This breaking news story is being updated and more details will be published shortly.
Following the funeral, and after nine days of mourning, cardinals from around the world will gather in the Vatican’s Sistine Chapel to cast their votes, with white smoke announcing to the world when a new pope has been elected.
Image: Cardinal Vincent Nichols speaks to Sky’s Anna Botting
Cardinal Nichols told Sky’s Anna Botting: “I hope nobody goes into this conclave, as it were, with the sole purpose of wanting to win. I think it’s very important that we go in wanting to listen to each other… It has to be together, trying to sense what God wants next. Not just for the church.”
He described the procession that took Pope Francis to lie in state as “the most moving thing I’ve ever attended here”.
Describing the Pope as a “master of the gesture and the phrase”, he also recalled the pontiff’s last journey away from the Vatican.
Cardinal Nichols said Pope Francis had visited the Regina Coeli prison, telling the inmates: “You know, except for the grace of God, it could well have been me … Don’t lose hope, God has you written in his heart.”
More on Liverpool
Related Topics:
Please use Chrome browser for a more accessible video player
5:28
‘Pope touched the hearts of millions’
The Pope later told his doctor his last regret was not being able to wash the feet of the prisoners during that visit.
Becoming emotional, he also said the final message he would like to have given Pope Francis is “thank you”.
The 88-year-old died peacefully on Easter Monday, the Vatican confirmed.
Please use Chrome browser for a more accessible video player
1:19
Where will Pope Francis be buried?
Talking about the seating plan at the funeral, Cardinal Nichols said he understood it to be “royalty first, then heads of state, then political leaders”.
Worldwide geopolitical tensions mean that many eyes will be on interactions between heads of state at the event, with particular focus on Donald Trump and Volodymyr Zelenskyy following their tense meeting at the Oval Office in February.
Please use Chrome browser for a more accessible video player
6:11
Pope’s cause of death confirmed .
Looking back at the last papal funeral, Cardinal Nichols described the seating of the then Prince Charles one seat away from Zimbabwean present Robert Mugabe as “obviously a little bit tense”.
Cardinal Nichols explained event would be “exactly the same Catholic rite as everyone else – just on a grander scale”.
Please use Chrome browser for a more accessible video player
1:52
3D map shows pope’s funeral route
In a break from tradition, Pope Francis will be the first pope in a century to be interred outside the Vatican – and will instead be laid to rest at his favourite church, Santa Maria Maggiore Basilica in Rome’s Esquilino neighbourhood.
He will also be buried in just one simple wooden coffin, instead of the traditional three coffins which are usually used for pontiffs.
Born in Crosby near Liverpool, Cardinal Vincent Nichols hoped to be a lorry driver as a child – but as a teenager reportedly felt the calling to join the priesthood while watching Liverpool FC.
As cardinal, he is known for leading the church’s work tackling human trafficking and modern slavery, for which he received the UN Path to Peace Award.
He was criticised by the UK’s Independent Inquiry into Child Sexual Abuse, which said he “demonstrated a lack of understanding” of the impact of abuse and “seemingly put the reputation of the church first”.
Cardinal Nichols, responding to the findings, previously told Sky News he was “ashamed at what has happened in the context of the Catholic Church” and promised to improve the church’s response.
He has appeared to rule himself out of the running for pope, telling reporters he was “too old, not capable”.