The Iraqi government has declared three days of national mourning after a huge bomb in the capital Baghdad killed at least 125 people and wounded about 150.
A lorry packed with explosives was detonated in the Karrada district while families were shopping for the holiday marking the end of Ramadan.
Rescuers said whole families had been wiped out and many victims were burned beyond recognition.
So-called Islamic State (IS) has said it carried out the suicide attack, reports BBC.
Prime Minister Haider al-Abadi visited the mainly Shia area on Sunday but his convoy was greeted by angry crowds.
His office later announced the three days of mourning, adding that Mr Abadi understood the angry reaction of residents.
As night fell on Sunday, teams of workers were still clearing debris from the site and searching the charred remnants of buildings.