Ariana Grande said she’s ‘broken’ and ‘so so sorry’ after 22 people died and 59 were injured in a terrorist attack at her Monday evening concert at the Manchester Arena in Manchester, England. The singer, 23, wrote in an emotional tweet: ‘broken. from the bottom of my heart, [I] am so so sorry. [I] don’t have words.’

Ariana’s manager, Scooter Braun, said: “Tonight, our hearts are broken. 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 ask all of you to hold the victims, their families, and all those affected in your hearts and prayers.”

Ariana has since suspended the entire European leg of her The Dangerous Woman Tour, with TMZ reporting the singer is ‘incapable’ of performing her next planned date in London on Thursday night. Organisers are said to be ‘deeply concerned about security’ in the wake of the attack.