New York - US pop star Ariana Grande early on Tuesday morning said she felt at a loss for words after a suspected terror attack at her concert in the British city of Manchester.
"Broken," she wrote in her first reaction on Twitter.
"From the bottom of my heart, I am so so sorry. I don't have words," she added.
ARIANA'S TWEET:
Police said at least 22 people were killed and around 59 wounded in the explosion at the 21 000-capacity Manchester Arena.
Emergency vehicles were helping the injured and bomb disposal units were later seen outside the venue. It was the deadliest attack in Britain since 2005.
PHOTOS: The scene of Ariana Grande concert bombing
Since news of the explosion broke, celebrities have taken to social media, reacting to what police are treating as a terrorist attack.
TWITTER REACTIONS:
ALSO READ: Pleas for info flood social media after blast at Ariana Grande concert