An explosion outside Ariana Grande’s concert at Manchester Arena tonight killed at least 19 people and injured 50 more in what British police are treating as a suspected terrorist attack. Numerous musicians have offered their support in the wake of this tragedy, and now Ariana Grande, who is understandably devastated by the events, has spoken out. “From the bottom of my heart, I am so so sorry,” she writes on Twitter. “I don’t have words.”

broken.
from the bottom of my heart, i am so so sorry. i don't have words.

— Ariana Grande (@ArianaGrande) May 23, 2017