Other militant attacks in recent years have been even deadlier:

In July 2016 more than 300 civilians were killed and hundreds injured in an IS suicide truck bomb attack on Baghdad's Shia district of Karrada - the deadliest attack by a single bomber in Iraq's history

In November 2016 up to 125 people, many of them Shia pilgrims from Iran and Afghanistan, were killed in a suicide car bombing by IS at a petrol station in Hilla, south of Baghdad

In July 2015 a truck bombing in a marketplace at Khan Bani Saad, Diyala, killed up to 120; it was claimed by IS

On 11 May 2016 multiple bombings in Baghdad targeted mainly Shia districts including Sadr City, killing 93 people; IS said it had carried out two of the attacks On Saturday, a suicide bomber carried out an attack at Aden Square in northern Baghdad, killing and wounding several people, according to security officials. A large crowd of laborers usually gather at the square each morning searching for day jobs, and the number of casualties is expected to rise. No group immediately claimed responsibility for the attack but it bore the hallmarks of the Islamic State in Iraq and Syria group, which has claimed such attacks before. The cost of victory has been nearly incalculable as the three years of war against IS devastated much of northern and western Iraq — roughly a third of the country — where Islamic State militants had held most of the territory.
A double suicide bombing kills at least 35 people and injures over 90 in Baghdad, Iraq.