From the other side of the arena where the bang was heard from suddenly came running towards where they were trying to get running out. That picture of a certain amount of his terrier that you are pointing out that no suggestion of any injuries at the moment his hysteria. I have seen pictures from looking down on the arena. There we re looking down on the arena. There were blue lights because ambulances may have been sent. No word on injuries. We do know that theory fear it self, people leaving and arena in fear like that, we know that can cause injuries. We know that can cause injuries. We know that police are responding to an incident, that people are scared, frightened, screaming, leaving the arena rapidly in an uncontrolled way. The immediate cause, as you say, if the sound of a bang. One or two, according to some reports. We dont know the cause. I saw pictures of big pink balloons in the arena, whether it was speakers exploding, gunfire, an explosion, as some people are reporting