A barefoot concertgoer, center, on a phone outside Manchester Arena where Ariana Grande had performed. (REUTERS/Jon Super)
Two women wrapped in thermal blankets stand near Manchester Arena. (REUTERS/Andrew Yates)
Armed police respond to the reports of an explosion at Manchester Arena during the Ariana Grande concert. (Peter Byrne/PA via AP)
An ambulance drives away from Manchester Arena, where Ariana Grande had been performing, in Manchester. (REUTERS/Andrew Yates)
People react at Manchester Arena after reports of the explosion at the venue during the Ariana Grande concert. (Peter Byrne/PA via AP)
People sit by the side of the road next to police tape outside Manchester Arena. (REUTERS/Andrew Yates)
A police van and an ambulance outside Manchester Arena. (REUTERS/Jon Super)
Emergency services personnel speak to people outside Manchester Arena after reports of the explosion at the venue during the Ariana Grande concert. (Peter Byrne/PA via AP)
Armed police gather at Manchester Arena after reports of the explosion at the venue during the Ariana Grande concert. (Peter Byrne/PA via AP)
Armed police officers stand next to police tape outside Manchester Arena. (REUTERS/Andrew Yates)