Police have named the suspected suicide bomber at the Manchester Arena on Monday as Salman Abedi, a 22-year-old was born in Manchester to parents of Libyan descent, according to BBC.
Efforts are being put in place by Greater Manchester Police in trying to establish whether Abedi had worked alone or not.
Three of his victims have been named – Saffie Rose Roussos, eight, Georgina Callander and John Atkinson, 28.
He is thought to have blown himself up in the arena’s foyer shortly after 22:30 BST on Monday, as fans were beginning to leave a concert by US singer Ariana Grande.
Earlier, world leaders and celebrities send messages of condolence and support to affected families.
Justin Trudeau, Nancy Pelocy, Dalia Grybauskaite, Bill English, Narendra Modi, Donald Tusk, Nicola Sturgeon, Jeremy Corbyn, send messages of comforts to families, friends and the British people for such unspeakable moment.
Justin Trudeau: Canadians are shocked by the news of the horrific attack in Manchester tonight. Please keep the victims & their families in your thoughts….(22 May 2017)
Narendra Modi: Pained by the attack in Manchester. We strongly condemn it. Our thoughts are with the families of the deceased & prayers with the injured….(22 May 2017)
Nancy Pelosi: Americans stand with the people of #Manchester, England, following tonight’s apparent terror attack…(22 May 2017)
Dalia Grybauskaite: Horrendous attack against the innocent in #Manchester. Our thoughts with the victims & their families, our solidarity with the people of #UK… (22 May 2017)
According to BBC, British Transport Police said the explosion was in the arena’s foyer connecting Victoria train and tram station, a major hub on the northern edge of the city centre.
Celebrities worldwide are also sending their support to affected families and the UK.
Ariana Grande was devastated, stating: Broken. From the bottom of my heart, I am so so sorry. I don’t have words.
Taylor Swift: My thoughts, prayers and tears for all those affected by the Manchester tragedy tonight. I’m sending all my love…(22 May 2017)
Justin Timberlake: My thoughts and prayers are with all those affected by this horrific act in Manchester. We need to do better. We need to LOVE ONE ANOTHER…(22 May 2017)
Christina Aguilera: Devastated by the news of what happened in Manchester at @arianagrande’s concert. Sending my thoughts and prayers to everyone affected.(22 May 2017)
Adriana’s management team also send messages of condolence and support to the affected families and people in the UK.
“Tonight, our hearts are broken,” the statement reads. “Words cannot express our sorrow for the victims and families harmed in this senseless attack.
“We mourn the lives of children and loved ones taken by this cowardly act,” the statement continues. “We are thankful for the selfless service tonight of Manchester’s first responders who rushed towards danger to help save lives. We ask all of you to hold the victims, their families, and all those affected in your hearts and prayers.”