A suicide bomber walks into a crowd of pilgrims going to the city of Karbala, which Iraq’s Shiites consider holy, then blows himself up among the crowd by pressing the detonation button on his explosives belt while shouting “Allahu Akbar” [God is the greatest]. The loud explosion shreds the victims’ bodies.
Because of strong security measures, the suicide bomber has become an alternative to the car bomb. He can easily infiltrate a crowd and is hard to detect.