Video report by ITV News Correspondent Emma Murphy
Seven children, including an eight-year-old girl, were among the 22 people killed in the Manchester Arena suicide attack.
A further 64 people were injured - many with life-changing injuries - after Monday night's Ariana Grande concert. Some remain in critical conditions.
Here is what we know about those who lost their lives.
Saffie Rose Roussos
At just eight years old "beautiful little girl" Saffie Rose Roussos was the youngest victim of the attack.
Her mother Lisa Roussos and sister Ashlee Bromwich, who were also at the concert, are being treated for their injuries in separate hospitals, friends said.
Chris Upton, headteacher Tarleton Community Primary School in Preston, said: "The thought that anyone could go out to a concert and not come home is heartbreaking.
"Saffie was simply a beautiful little girl in every aspect of the word.
"She was loved by everyone and her warmth and kindness will be remembered fondly. Saffie was quiet and unassuming with a creative flair."
Courtney Boyle and Philip Tron
"Perfect student" Courtney Boyle, 19, and her mother's partner Philip Tron, 32, both from Gateshead, are also among the dead.
Deborah Hutchinson, Courtney's mother, described the pair as "both my angels flying high in the sky".
Ms Hutchinson said of her daughter, who was at the Leeds Beckett University: "My stunning amazing beautiful daughter you were my rock, you made me so proud with all you had achieved.
"And my gorgeous crazy Philip, you made my world a happy place and now you are both my angels flying high in the sky."
Courtney's dad added: "I am going to miss my baby girl Courtney Boyle for the rest of my life.
"I will never forget you and I will love you forever. Grandad Bob misses you loads also."
Courtney's sister called her a "wonder of a sister who is now a shining yellow star in the sky," calling Philip her "Costa buddy" who was "always there no matter what to keep me safe and make me happy."
The principal at Lord Lawson of Beamish Academy said Courtney "really was the epitome of a perfect student".
Off-duty Cheshire Police officer Elaine McIver was killed in the blast and her partner Paul was also seriously injured.
Family paid tribute to the 43-year-old, described as "everyone's friend" who had a "major love" for music.
A statement read: "Elaine was a much loved daughter, sister, Auntie, friend and colleague, the best we could ever have wished for.
"She was everyone's friend, thoughtful beyond belief with an effervescent and outgoing personality.
"Elaine just loved life, and had a major love of music. Despite what has happened to her, she would want us all to carry on regardless and not be frightened by fear tactics, instead she regularly urged us all to rise up against it.
"Although we will all miss her beyond belief, we absolutely know she will live in our hearts forever."
More than 100 people held a candlelit vigil mum Wendy Fawell, praying for her safe return.
But the 50-year-old, from Otley in West Yorkshire, was reported to have been about to leave the concert with her 15-year-old daughter Charlotte, along with a friend and her sons, when they were caught in the attack.
Charlotte was taken to hospital in Oldham and her brother, Adam Fawell, 29, began a desperate search for his mother.
Adam said: "Me and my family are truly devastated by the news. Mum was a wonderful woman. So kind and generous and touched the lives of so many.
"She will be greatly missed. Also I would like to add, how much it means to us, what everybody at home and in Manchester have done to support us at this time. Thank you."
St Oswald's School in Guiseley also paid tribute to their former colleague.
Chloe Rutherford and Liam Curry
The teenage sweethearts from South Shields were "perfect in every way for each other" and "wanted to be together forever", their families said in a joint tribute.
Friends and relatives of Chloe, 17, and Liam, 19, had issued desperate appeals for information after failing to make contact with them following the attack.
Liam, a former pupil of Gateshead College, was studying for a degree in sport and exercise science at Northumbria University. His father Andrew died in March aged 49.
Liam had raised money for the Sir Bobby Robson Foundation, which funds cancer research, since he was 14, a spokeswoman for the charity said. He continued to fundraise after his father's diagnosis and undertook a 260-mile sponsored cycle ride from Calais to Paris and a Great North Run.
In a joint statement released through Greater Manchester Police, their relatives said they were inseparable, saying: "On the night our daughter Chloe died and our son Liam died, their wings were ready but our hearts were not.
"They were perfect in every way for each other and were meant to be. They were beautiful inside and out to ourselves and our families, and they were inseparable."
Chloe was studying music at college and was about to start an apprenticeship in travel, her boss said.
Graeme Brett, owner of Westoe Travel in South Shields where she worked part-time, said: "She was a lovely, bubbly girl ... She always had a smile on her face from the moment she walked in the door to the moment she went home."
Scottish schoolgirl Eilidh was a "vivacious" youngster and "full of fun", her family said following confirmation of her death in the attack
The 14-year-old, from Barra in the Outer Hebrides, was at the concert with friend Laura MacIntyre, 15, who was seriously injured and remains in hospital.
Her family said they were "devastated", adding: "Eilidh was vivacious and full of fun. She loved all music, whether it was listening to Ariana or playing the bagpipes with her pipe band."
Eilidh and Laura were pupils at Castlebay Community School and their head teacher said the incident has left everyone in shock.
Annag Maclean said: "Our school and island community are in shock, feeling numb and struggling to come to terms with it. Our thoughts and prayers are with Eilidh and Laura, their family and friends as they struggle to cope."
A fund set up for the families of the two girls has raised almost £20,000.
Lisa Lees and Alison Howe
Two mothers, Alison Howe and Lisa Lees, aged 45 and 47, had gone to Manchester Arena together to pick up their two daughters, Darcy and India, when the bomb went off as they stood waiting in the venue's foyer.
Ms Lees' uncle Philip Hunter told ITV News Correspondent Rupert Evelyn the death of his niece came shortly after she mourned the loss of her own father.
Alison's husband Steve Howe spoke of his frustration at being kept waiting for more before receiving the devastating news from emergency services.
He said: "We were left in the dark."
A family member wrote on Facebook late on Tuesday: "They took a caring beautiful mum and step mother away from us all she was amazing to us all x love you loads Alison Howe xx"
Alison's stepson Jason Howe paid tribute to his "caring beautiful mum and step mother" saying "she was amazing to us all".
And Lisa's brother Lee Hunter posted an emotional message to his sister on his Facebook page saying: "For those who don't know, Lisa is gone but never ever forgotten. I love you Lisa. I'll miss you so much. "
Lisa's husband, daughter and mother all released statements in tribute on Friday.
Her daughter India described her as the "best mum in the universe".
"You always cheered me up when I was upset and have always been there for me. You have the most beautiful smile and most caring eyes. You are loved by everyone," she said.
"I will forever miss our girly days out and talking to you about everything. You taught me to ‘believe’ in myself and to do my best. I will make you proud mum, I promise. I love you soooo much, more than anything and always will."
Lisa's husband Anthony said she had been "my life, my soulmate, my best friend".
"Life will never be the same again," he added.
"My heart has been ripped apart. Lisa you really were such an amazing woman, the perfect mum to India and Lauran, and the coolest nanna to Jayden. You brought joy and happiness wherever you were and whoever you were with. You achieved so much in your career as a beauty therapist. We are all so proud of what you achieved, Lisa you really were such an amazing woman.
"RIP babe we all love you so much."
And Elaine Hunter, her mother, said she was "so proud" of what Lisa had achieved - including graduating from university last year and winning an award of excellence in London for her work with children with complex mental health issues.
"Little did I know that when I spent the day with you on Sunday 14 May it would be the last time I got to hold you as your life was cut short before your time, through a cowardly act of murder," she said.
"You were a wonderful daughter, wife and mother and sister. You were an inspiration to all and should have had a great life ahead of you. Instead at the age of 43 your time on earth ended, you are now an angel in God’s garden.
"Don’t know how we will go on without you but I know you would want us too, my Darling Daughter I love you now and forever."
The 14-year-old, from Adel, Leeds, died after the concert attack which also left her mother and grandmother seriously injured in hospital.
Her heartbroken grandfather, Michael Healey, said the aspiring architect was the family's "rock", calling her "a clever, talented, creative girl - there was nothing she couldn't do".
Mr Healey said Sorrell, her mother and grandmother had gone to the arena to collect two girls who attended the concert.
Sorrell's mother Samantha remains in hospital recovering from surgery and trying to "make sense of the devastating loss of her daughter".
Her grandmother Pauline - Mr Healey's wife - remains in intensive care and has undergone 15 hours of surgery to remove shrapnel from her body and address multiple compound fractures to her arms and legs.
The family of married mother-of-three Michelle Kiss, 45, have said they are "devastated by her loss" and hope to draw on the "courage and strength she showed in her life" as they come to terms with her death.
"Michelle Kiss was a loving wife to Tony, mother to Dylan, Elliot and Millie, as well as daughter to Mick and Christine and sister to Nichola," the family said in a statement.
"Family was her life and we are all obviously devastated by her loss. She has been taken away from us, and all that love her, in the most traumatic way imaginable.
"We hope to draw from the courage and strength she showed in her life to get through this extremely difficult time."
The school receptionist and mother of three was "a truly wonderful friend and colleague", according to the principal of the school where she worked.
Ms Tweddle, 51, of Blackpool, was at the arena waiting for a friend's daughter when the blast happened, according to her husband Mark Taylor, who told BBC Radio Lancashire she was "a lovely lady and a very good mother to three daughters".
Jane Bailey, head of South Shore Academy in Blackpool, said: "Jane was a truly wonderful friend and colleague to all of us at South Shore Academy. As our receptionist, she was in many ways the public face of the school and she represented us amazingly in this role."
She was the wife of ex-Hartlepool United player Mr Taylor. The club tweeted: "We are so sorry to learn that former Poolie Mark Taylor lost his wife Jane in Manchester attack. Thoughts with him, his family & friends."
Tributes were paid to "bright and popular" year 9 pupil Nell Jones on Wednesday as her school confirmed the "always smiling" student had died in the Manchester Arena attack.
Nell, 14, a student at Holmes Chapel Comprehensive School and Sixth Form College, Cheshire, has been missing since Monday's blast and her family had been hoping they would find her being cared for in hospital.
The teenager's Form Tutor David Wheeler said: “Nell was a very popular girl, always smiling, always positive. Her tutor group have been together since the transition from primary school. It feels like they have lost a sister not a classmate.”
The family of concert goer Martyn Hett have paid tribute to the Manchester attack victim, describing him as an "icon of all our lives".
The 29-year-old PR manager, who had appeared on TV shows Come Dine With Me and Tattoo Fixers, was killed days before leaving for a two-month trip to the US.
In a statement released on Thursday, his family said: "Our beloved son Martyn just happened to be at the wrong place at the wrong time.
"Martyn was the icon of all our lives. His infectious laugh and his niche sense of humour will stay with us forever.
"He lived for every moment of every day and fitted an entire lifetime of memories into his 29 years.
"Whilst they have taken the life out of Martyn, no one can, and ever will, take Martyn out of our lives."
Russell Hayward, believed to be Mr Hett's partner, posted a message on Twitter on Wednesday and paid tribute to the "iconic and beautiful" Martyn after finding out that he had not survived.
A desperate mother who spoke of her frantic efforts to find her teenage daughter after the Manchester Arena attack has confirmed she has died.
Charlotte Campbell last heard from 15-year-old Olivia shortly before Ariana Grande came on stage on Monday evening.
Her family had spent Tuesday searching for her, hoping she was one of the dozens of injured people receiving treatment in hospital.
But in a heartbreaking message posted on her Facebook page in the early hours of Wednesday morning, Charlotte revealed she had died in the blast.
She wrote: "RIP my darling precious gorgeous girl Olivia Campbell taken far far to soon go sing with the angels and keep smiling mummy loves you so much."
Ms Campbell asked crowds at a vigil on Wednesday evening not to let the atrocity "beat any of us".
Angelika and Marcin Klis
The Polish couple, from York, died after going to Manchester Arena to collect their daughters from the concert.
On Wednesday, York College confirmed that Mr and Mrs Klis, aged 42 and 40 respectively, were among the dead.
College principal and chief executive Dr Alison Birkinshaw said: "Everyone at York College is shocked and saddened to learn that the parents of one of our students, Alex Klis, both died during the Manchester attack.
Polish foreign minister Witold Waszczykowski told a Polish radio station on Tuesday: "The parents came after the concert to collect their daughters and unfortunately we have information that they are dead. The children are safe."
On Tuesday, York College student Alex Klis said she was looking for her parents, Angelika and Marcin, thought to be a taxi driver, who had been missing since the attack.
In a post on Facebook, she wrote: "Anyone who is in any safe place or hospital in Manchester, if anyone comes across my parents please please let me know as they've been missing ever since the attack."
Online appeals have been started to help her and her younger sister, Patrycia.
Kelly Brewster, 32, from Sheffield, South Yorkshire, died shielding her 11-year-old niece from the blast.
Her niece and sister, who she also helped protect, are both receiving treatment in hospital for shrapnel wounds.
It was hoped Kelly was receiving treatment as an unidentified patient in hospital.
However her partner Ian Winslow, later wrote on Facebook: "Not sure how this works but it isn't good news.
"Kelly Brewster wasn't one of the unidentified hospital patients. She has sadly passed away in the terror attack yesterday.
"Kelly really was the happiest she has ever been and we had so many things planned together. My daughter Phoebe will be absolutely devastated like we all are."
John Atkinson from Radcliffe, Bury was named by friends on Facebook as a victim.
The 26-year-old was described in tributes as an "amazing young man", and a fund for his family, set up by friends, has raised around £5,000.
"John was one in a million and loved by so many," wrote Hayley Turk, who organised the fund through website GoFundMe, adding: "A true gentleman."
"Absolutely heart-broken," wrote one contributor, who gave her name as Kimberley Bowker.
Labour's Ivan Lewis, who is standing for re-election in Bury South and paid tribute to Mr Atkinson on Twitter, told ITV News: "The outpouring of grief from the community in Radcliffe says a lot about just how loved John was."
Jamie Walker, councillor for Radcliffe North, said: "I'm sure all of Radcliffe will be joined in grief today as the town mourns the loss of a great local personality.
"Radcliffe has come together today in support of the family and tributes have poured in.
"I have spoken with John's family today and offered all of the Radcliffe councillors condolences and support on such a sad day."
An official book of condolences has been opened at Bury Town Hall for the John and other victims of the attack.
The first victim of the Manchester bombing to be named was Georgina Callander, a student from Lancashire.
Georgina, 18, had tweeted on Monday that she was "so excited" to see the performance in Manchester.
The teenager's college confirmed her death at the Ariana Grande concert “with enormous sadness”.
Runshaw College in Leyland, Lancashire, said that the young girl was on the second year of her health and social care course, and was a former student at Bishop Rawstorne Church of England Academy.
"Our deepest sympathies, thoughts and prayers go out to all of Georgina's family, friends, and all of those affected by this loss," Runshaw College said.
Bishop Rawstorne Church of England Academy confirmed that Georgina died as a result of the injuries she sustained.
In a statement the school said: "Georgina was a lovely young student who was very popular with her peers and the staff and always made the most of the opportunities she had at the school.
"Our thoughts and prayers go out to Georgina's family at this terrible time, and we think especially of her brothers Harry and Daniel who were also former students of the school."
Fifteen-year-old Megan Hurley, from Halewood in Merseyside, was the final victim to be named.
It is understood that she had been at the concert with her brother Bradley, who remains in hospital after being injured in the explosion.
Her death was confirmed online by her aunt Maxine Benson, who wrote: "My poor sister and Mike are destroyed beyond words... it doesn't seem fair for two kids to go to a concert and only one returns how in God's name could this happen to such a lovely family... heartbroken xx."
A relative wrote on Facebook that Megan's parents are "destroyed beyond words". They added: "It doesn't seem fair for two kids to go to a concert and only one returns how in God's name could this happen to such a lovely family...heartbroken."