The explosion happened near an entrance to the 21,000-seat arena just minutes after Grande’s concert ended with the song “Dangerous Woman” and the singer left the stage, witnesses said.
Many of the concert’s attendees were girls and young women, some clutching pink balloons, who had come to see one of the world’s biggest pop stars. After the explosion, many children were either separated from their parents or came unaccompanied and didn’t know where to go.
British counter-terrorism investigators think the possible terrorist attack may have been the work of a suicide bomber who entered a crowded area outside the performance space where attendees were streaming out of the concert, according to U.S. law enforcement sources briefed on the investigation.
"We are working to establish the full details of what is being treated by the police as an appalling terrorist attack,” British Prime Minister Theresa May said in a statement. “All our thoughts are with the victims and the families of those who have been affected."
Ariana Grande's concerts have been canceled until June 5 and maybe longer, until her team figures out how to address new security concerns.
Here is the full statement from Ariana's management: "Due to the tragic events in Manchester the Dangerous Woman tour with Ariana Grande has been suspended until we can further assess the situation and pay our proper respects to those lost."
"The London O2 shows this week have been cancelled as well as all shows thru June 5 in Switzerland. We ask at this time that we all continue to support the city of Manchester and all those families affected by this cowardice and senseless act of violence."
"Our way of life has once again been threatened but we will overcome this together. Thank you."
Ariana Grande has a strong support system as she mourns the loss of lives and deals with the trauma from the shocking terrorist attack at her Manchester concert Monday night.
“She’s still just absolutely crushed,” an insider close to the singer, 23, tells PEOPLE exclusively. “She and her loved ones have barely slept this week.”
The Grammy nominee, whom a separate Grande source previously said was focused on the victims, has her “friends and family rallying around her and being supportive of her,” adds the insider. One day after the attack, the pop star and her mother Joan — who ushered young fans backstage to safety after the bomb went off, confirms the insider — returned home to Boca Raton, Florida, where they had an emotional reunion with the star’s boyfriend Mac Miller.
Just four days after floating a plan to stage a massive benefit concert for the victims of the May 22 terrorist attack in Manchester, England, Ariana Grande, her manager Scooter Braun and two of the biggest promoters in the U.K. are launching an event that will be seen by millions of people around the world.
Ariana Grande's One Love Manchester will take place June 4 at the cricket stadium at Emirates Old Trafford in Manchester and will be produced by Live Nation subsidiary Festival Republic and Simon Moran's SJM Concerts. Money raised from the event will go to support the families of the 22 individuals killed in the attack and the over 100 injured.
"The idea to host this event came from Ariana," Festival Republic's Melvin Benn tells Billboard. "She was very traumatized after the attack, but it was very important to her to support the victims and show a level of defiance that stands up to this bloodlust and ambivalence towards innocent individuals and tells the terrorists that they are not going to stop us."