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Good morning.

Here’s what you need to know:

• ISIS lays claim to attack in Britain.

The Islamic State claimed responsibility today for the attack on Manchester Arena, the deadliest terrorist assault in Britain since 2005. The death toll has risen to 22; an 8-year-old girl was among the first victims to be identified.

The police said the bomber died in the explosion that tore through the venue as the pop star Ariana Grande was ending a concert Monday night. The attack, in which dozens were wounded, was one of the deadliest in Western Europe since 2015.

“It was meant to be a dream, not a nightmare,” said a woman who attended the concert with her 14-year-old daughter. We spoke with some of the survivors.