London - British Prime Minister Theresa May says the government is working to learn the full details of the blast that killed 22 people at an Ariana Grande concert on Monday night.
May says the government is trying to establish "the full details of what is being treated by the police as an appalling terrorist attack."
She said her thoughts are with the victims and the families of those who have been affected.
The government is expected to call an emergency cabinet meeting to deal with the incident.
Greater Manchester Police say 22 people have been confirmed dead in an explosion. Police said roughly 59 people were injured.