MANCHESTER, ENGLAND - Police and fans close to the Manchester Arena on May 23, 2017 in Manchester, England.  There have been reports of explosions at Manchester Arena where Ariana Grande had performed this evening.  Greater Manchester Police have have confirmed there are fatalities and warned people to stay away from the area. (Photo by Dave Thompson/Getty Images)
How the Manchester Arena explosion unfolded
01:11 - Source: CNN
CNN  — 

At least 22 people were killed in a terror attack at an Ariana Grande concert in Manchester, England on Monday night. Get live updates below.