Three explosions happened outside of the stadium not two explosions

That was  friendly soccer match between France and Germany nations happening in Stande De France and suddenly a heavy crackling sound is heard inspite of ear breaking crowd cheering. The sound was high on decibel and could be heard clearly in the videos. The sound was possibly by the suicide hostages who would have exploded themselves in the nearby restaurant. The explosions were reported to two but many eye witnesses said that they have heard of three explosions.