An explosion has been seen and heard at an Ariana Grande concert in Manchester. There are reports of several victims and injured people due to this explosion.• Explosion footage:^ you can hear an explosion and see some light from it in the video above at 0:06 seconds• People panicking:• Injuries:• One arrest caught on camera:• Police and emergency vehicles:Source: Twitter (JoeAaronGregory, hannawwh, JSMcbrearty, Suzymoonbeam, jmsat_, avparis7, elliefreyax, et. al.)