Fourteen improvised explosive devices (IEDs) were detonated Dec. 22 in ten neighborhoods in downtown Baghdad during the morning rush hour. Two more exploded in a neighborhood near Baghdad International Airport later in the evening. Most of the devices appear to have been fairly small; the largest explosion came from a suicide vehicle-borne improvised explosive device (VBIED) concealed in an ambulance that detonated in the Karrada neighborhood. The attacks appear to have targeted mostly Shiite neighborhoods. In total, 69 people were killed and more than 138 wounded. While security forces successfully disarmed six IEDs placed in or on vehicles, some of the sites had two devices: one bomb whose blast would attract bystanders and first responders, with a second meant to be detonated once they had gathered.