Police say a number of people have died in a reported explosion at Manchester Arena pic.twitter.com/yEYF7tVVWF — Press Association (@PA) May 22, 2017

Robert Tempkin, 22, from Middlesbrough, said: "Everyone was screaming and running, there were coats and people's phones on the floor. (Published Wednesday, May 24, 2017)

At least 22 people including children were killed and more than 50 injured in a suspected suicide bombing at Manchester Arena at the end of an Ariana Grande concert Monday night, British police said. ​Announcing that the death toll had risen, Greater Manchester Police chief constable Ian Hopkins said: "What I can confirm is that there are children among the deceased." He added that it is believed a single attacker carried and detonated an improvised explosive device around 10:33 p.m. local time and then died at the arena. Mr Hopkins said a "fast-moving investigation" had established the attack was conducted by one man, although detectives are working to establish if he was "was acting alone or as part of a network". A 23-year-old man was arrested in South Manchester in connection with the bombing, police said Tuesday. May added that authorities believe they know the identity of the attacker but did not confirm the name. Downing Street said a meeting of the Government's emergency Cobra committee is expected to take place at around 9am on Tuesday morning chaired by Theresa May. Majid Khan, 22, said: "I and my sister, along with a lot of others were seeing Ariana Grande perform at Manchester Arena, and we were all exiting the venue when around 10.40-10.45pm-ish a huge bomb-like bang went off that hugely panicked everyone and we were all trying to flee the arena. "It was one bang and essentially everyone from the other side of the arena where the bang was heard from suddenly came running towards us as they were trying to exit Trinity Way and that was blocked so everyone was just running to any exit they could find as quickly as they could. Grande, the US singer who finished performing minutes before the blast, said she had been left "broken" by the events. "One girl had a panic attack and another had streaming tears, a woman had a heart attack just outside. On social media, people shared videos of people rushing from the arena and ambulances arriving. He said: "I was in the toilet and heard a loud bang just after the concert had finished and people had started to leave. She said she heard loud bangs and what sounded like gunshots just after the entertainment had finished. "Some people were screaming they'd seen blood but other people were saying it was balloons busting or a speaker had been popped. A father described seeing "carnage everywhere" in the wake of an explosion at Manchester Arena that left around 30 people, including children and disabled victims, lying on the floor. Hopkins said emergency numbers have been set up for people concerned about their loved ones, and he encouraged anyone to send video or photos that may help in the investigation. The Associated Press contributed to this report.
The GMP confirms at least 19 people have been killed and 50 others injured and is treating the incident as a terrorist attack. Nobody immediately claimed responsibility.