LONDON — Here is what we know so far about the eight people killed in an attack in London on Saturday night, when three men in a van drove into pedestrians on London Bridge before stabbing several people in nearby Borough Market.

All the victims have been publicly identified by British officials. Here are their stories.

Christine Archibald, 30

Image Christine Archibald Credit... Archibald Family, via Reuters

Christine Archibald, a Canadian living in the Netherlands, had come to London with her fiancé for a romantic weekend and was walking across London Bridge on Saturday when a white van veered off the road, smashing into her.

Ms. Archibald was the first victim to be publicly identified, and her final moments were recounted in a Facebook post by her fiancé’s brother, Tyler Ferguson. Mr. Ferguson’s sister said Ms. Archibald died at the scene in her fiancé’s arms.

“They were not married yet,” the sister, Cassie Ferguson Rowe, said in an interview on Facebook Messenger. “They were in the midst of planning their wedding and future together.”

Ms. Archibald, known as Chrissy, had worked at a homeless shelter in Canada before moving to the Netherlands with Mr. Ferguson, who is also Canadian and had moved to The Hague for work. Her family urged people to volunteer their time and labor or to donate to a homeless shelter in her memory.

“We grieve the loss of our beautiful, loving daughter and sister,” the Archibald family said in a written statement. “She had room in her heart for everyone and believed strongly that every person was to be valued and respected.”

Kirsty Boden, 28

Image Kirsty Boden Credit... Metropolitan Police

Kirsty Boden, a nurse from Australia who worked at Guy’s Hospital in London, died while rushing to help the wounded on London Bridge.

“As she ran towards danger, in an effort to help people on the bridge, Kirsty sadly lost her life,” her family said in a written statement. “We are so proud of Kirsty’s brave actions, which demonstrate how selfless, caring and heroic she was, not only on that night, but throughout all of her life.”

Eileen Sills, the chief nurse at Guy’s and St. Thomas’ NHS Foundation Trust, described Ms. Boden as an “outstanding nurse” who always went the extra mile in her duty of care. Ms. Boden’s colleagues described her as “one in a million,” Ms. Sills said.

Alexandre Pigeard, 26

Image Alexandre Pigeard Credit... Pigeard Family, via Agence France-Presse — Getty Images

Alexandre Pigeard, a French waiter, was stabbed to death while serving customers at a bistro in Borough Market.

Mr. Pigeard came to London nine months ago to improve his English, his father, Philippe Pigeard, said in an interview with Agence France-Presse. He described his son as “a shining young man.”

In a résumé published online, Alexandre Pigeard described himself as “amicable, energetic and versatile,” but only after first touting his “small mustache.”

“Alexandre was a marvelous son, a perfect older brother and a radiant young man much loved by all who had the good fortune to meet him,” his family wrote in a statement released by the police. “All his friends praised his kindness, his good humor and his generosity.”

Sebastien Belanger, 36

Image Sebastien Belanger Credit... Metropolitan Police

Sebastien Belanger, a Frenchman, was living in London and working as a chef. He was confirmed by the police to be one of the victims of Saturday’s attack, but few details were provided.

A friend who was with him Saturday night described in a Facebook post how Mr. Belanger became separated from their group during the chaos of the attack. They had been at the Boro Bistro in the Borough Market area.

Sara Zelenak, 21

Image Sara Zelenak

Sara Zelenak, who moved to London in March to work as a nanny, was the second Australian to be identified as having died on Saturday.

Her death was confirmed via Facebook Messenger by her aunt Tara Jane, who described Ms. Zelenak as “the most beautiful, funny, happy and positive young lady, who had so much to live for.”

Ms. Zelenak was separated from her friends during the attack.

Ignacio Echeverría, 39

Image Ignacio Echeverría Credit... Isabel Echeverría, via Associated Press

Ignacio Echeverría, a banker from Spain, was skateboarding along London Bridge when the attack unfolded. Witnesses said he was attacked as he tried to use his skateboard to defend a woman who had been stabbed.

“We were at Borough Market deciding what to eat,” his friend Harry Barnett wrote in a message. “We saw some of the stabbings and ran, and we saw Ignacio run towards one of the guys with his board.”

Mr. Echeverría’s death was confirmed by the Spanish Foreign Ministry and his sister, who wrote in a Facebook post: “My brother Ignacio tried to stop terrorists, and lost his life trying to save others.”

The banker, known to loved ones as Igna, moved to London in February 2016 to work for HSBC. Mr. Echeverría grew up and studied in Madrid, but he spent most of his summers in Comillas, a seaside town in northern Spain.

“He loved this place so much that he was buying his own flat there,” his friend Guillermo González-Arnao Beneyto said. “He had given a deposit and the deal was supposed to be finalized this week or the next.”

James McMullan, 32

Image James McMullan Credit... Press Association, via Associated Press

James McMullan lived in the Hackney area of London and was remembered by his sister as a family man.

His sister, Melissa McMullan, said that he was a hard worker and was set to start a new online business in the next few weeks.

“He was a really good person, and he didn’t deserve to die, not alone,” Ms. McMullan said through sobs during an interview with Sky News. “Nowhere else will you find such humor and unique personality, with someone who puts friends and family above all else.”

Mr. McMullan was last seen by friends outside the Barrowboy & Banker pub, around the time that the attackers’ van crossed London Bridge. He had stepped outside to smoke.

“Remember that hatred is the refuge of small-minded individuals and will only breed more,” the family wrote in a statement released by the police. “This is not a course we will follow despite our loss. Words will never be able to match his essence; there will only ever be one James.”

Xavier Thomas, 45

Image Xavier Thomas Credit... Metroplitan Police

Xavier Thomas was visiting London with his girlfriend from their home in France. The pair were strolling along London Bridge and were struck by the attackers’ vehicle and thrown into the Thames, according to the BBC.

Mr. Thomas’s body was recovered by the police on Tuesday, and he was the final victim to be formally identified by the Metropolitan Police of London.

His family paid tribute to him in a written statement and described him as a dedicated father with a curiosity about the world.

“The things that were important to Xavier were his children and his work,” his daughter Noémie Thomas wrote. “Xavier would not be content with a quiet life, he needed to always discover more.”

She added, “He was very faithful to people.”

Mr. Thomas’s girlfriend, Christine Delcros, who was injured in the attack, wrote a tribute to her partner.

“Xavier, my love, my sun, you have marked my heart forever,” she wrote, adding, “I will cherish you intensively in my heart, and that way our love will link us forever.”