Tributes have been paid to the 22 people killed in the attack at Manchester Arena, some of them children.

Eight-year-old Saffie Rose Roussos, Olivia Campbell, 15, John Atkinson, 28, Georgina Callander – thought to be 18 – and Kelly Brewster are the first five to have been named.

A vigil was held in Manchester on Tuesday evening to show support for victims and their families, and those still searching for people after the attack on 22 May at a concert by US singer Ariana Grande.

A hotline has been set up for people concerned about loved ones: 0800 096 0095. Prime Minister Theresa May said on Tuesday that the attack targeted “innocent children, young people and their families”.

Eight-year-old Saffie Rose Roussos, was “simply a beautiful little girl in every sense of the word,” said Chris Upton, head teacher at Lancashire’s Tarleton Community Primary School. “She was loved by everyone and her warmth and kindness will be remembered fondly,” he said.

He added: “News of Saffie’s death in this appalling attack has come as a tremendous shock to all of us and I would like to send our deepest condolences to all of her family and friends. “The thought that anyone could go out to a concert and not come home is heartbreaking. “Our focus is now on helping pupils and staff cope with this shocking news and we have called in specialist support from Lancashire County Council to help us do that.”

The death of Olivia Campbell, 15, was announced by her mother Charlotte on Tuesday after an agonising search. Charlotte Campbell, from Bury in Greater Manchester, wrote: “RIP my darling precious gorgeous girl… taken far far too soon go sing with the angels and keep smiling mummy loves you so much.”

Olivia’s family had spent the day desperately searching for her, hoping she was one of the dozens of people injured and being treated in hospital.

Student Georgina Callander, thought to have been 18, had already met the US singer Grande before seeing her perform on Monday. She had previously posted a photograph of herself with the 23-year-old singer, taken in 2015, on her Instagram account.

Before the concert, Miss Callander had sent a Twitter message to Grande, saying: “SO EXCITED TO SEE YOU TOMORROW”. Friends paid tribute to their “beautiful” Georgina on social media and said she was one of the first people taken to hospital after the attack.

Miss Callander had been studying at Runshaw College in Leyland, Lancsashire, in the second year of a health and social care course. “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 in a statement. “We are offering all available support possible at this tragic time, including counselling with our dedicated student support team.”

A fundraising page has been set up to help her family with funeral and memorial costs.

Bolton Wanderers Football Club paid tribute to Georgina, who had played for their under-11 girls’ team in 2010. Club chaplain Phil Mason said: “Our thoughts and prayers are with her friends and family during this awful time of loss.” He added that there will also be a minute’s silence before the first team ladies’ friendly against Wigan Athletic on Wednesday evening at Macron Stadium, where the team will wear black armbands.

John Atkinson, 28 was described by friends as “a true gentleman” in online tributes. Friends of Mr Atkinson, who had lived in Bury, have also set up a fundraising page to help his family, which has raised more than £4,000. “John tragically lost his life last night (22/05/17) in the Manchester MEN bomb attack,” wrote Hayley Dickenson, who organised the fund.
“A true gentleman. R.I.P John thoughts and prayers with you family and all of the other victims effected by this tragedy,” she said. “John was one in a million and loved by so many,” she added.

Kelly Brewster, from Sheffield, South Yorkshire, was separated from her sister at the end of the performance. Family and friends reported her missing but later found out she had died. Miss Brewster was “the happiest she had ever been”, according to her partner.

Ian Winslow 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. “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.”