ABC News reports:

ISIS has claimed responsibility for the deadly explosion at an Ariana Grande concert in Manchester, England, Monday that killed 22 people and injured 59 others.

In a statement translated from Arabic, ISIS said that a soldier of the caliphate placed explosives among a gathering of crusaders — meaning Christians — at the Manchester Arena. The statement said about 30 were killed and about 70 were wounded.

The man believed to be the lone attacker died at the scene after using an improved explosive device, officials said, but police are still determining if the attacker acted alone or as part of a wider group, said United Kingdom Prime Minister Theresa May. Greater Manchester Police said a 23-year-old man has been arrested in South Manchester in connection with the attack.