At least 19 people were killed and 59 wounded in an explosion at the end of a concert by US. singer Ariana Grande in the English City of Manchester on Monday. 

Prime Minister Theresa May said the incident was being treated as a terrorist attack. If confirmed, it would be the deadliest militant assault in Britain since four British Muslims killed 52 people in suicide bombings on London's Transport system in July 2005

Police responded to reports of an explosion shortly after 10:33 pm at the Arena, which has the capacity to hold 21, 000 people, where the US. singer had been performing to an audience that included many children.