Just on news here. Explosion at concert in Manchester Arena. Videos show many police, ambulances. Greater Manchester Police say "There are a number of Fatalities".
Currently what police seem to be saying is that the explosions may have been part of the act and that the dead and injured were caused by panic - still very little news coming out. People I know who were there said lights were already on when the explosion happened so not a planned part of the show gone wrong.