UPDATE: According to Billboard, “despite speculation that Grande may cancel the rest of the tour, her camp has not made a decision on the matter yet.” Stay tuned.

Ariana Grande has indefinitely grounded the Dangerous Woman World Tour after 22 people were killed and at least 59 more were injured in an ISIS suicide bombing at her show in Manchester, England.

According to TMZ, she is too distressed to continue with the tour which travels throughout Europe, followed by South America. The pop star, who was unharmed in the attack, expressed her heartbreak over the devastating tragedy via Twitter. “Broken,” she wrote. “From the bottom of my heart, I am so so sorry. I don’t have words.”

The singer’s management released a longer statement this morning, writing: “Words can not 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. We ask all of you to hold the victims, their families, and all those affected in your hearts and prayers.”

Universal Music Group (which holds Grande’s label Republic Records) also shared a message: “We are deeply saddened to learn of tonight’s devastating event in Manchester. Our thoughts and prayers are with all those affected by this tragedy.”

Grande’s manager, Scooter Braun, also released a statement via Twitter. “Tonight, our hearts are broken,” it 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. 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.”

See Ariana and Scooter’s tweets below.

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