explosion

independent.co.uk
'Two explosions' heard at Ariana Grande concert in Manchester
There are a number of confirmed deaths at Manchester Arena following a reported explosion at an Ariana Grande concert, police have said. Twitter users reported thousands of concert goers fled the arena covered in blood and crying, although it is not immediately clear what the reported "loud bangs" were. The noises were heard towards the end of the show, with witnesses claiming on social media they believed the bangs were a "gun shot" or a "bomb".