Los Angeles: Singer Ariana Grande made her first comment since the deadly bombing at her concert in Manchester, England, on Monday, tweeting: "broken. from the bottom of my heart, i am so so sorry. i don't have words."
The tweet came some five hours following an explosion at Grande's concert that killed at least 22 people and wounded dozens of others at the Manchester Arena.
At least 19 killed in blast at Ariana Grande concert in Manchester
British police said the incident, in which at least 50 people were injured, was being treated as a terrorist incident. Police carried out a controlled explosion on a suspect device several hours after the blast.
A spokesman for Ariana Grande, 23, said the singer was "okay".
Manchester Arena, the largest indoor arena in Europe, opened in 1995 and is a popular concert and sporting venue.