At least 125 people have been killed and about 150 injured in an explosion claimed by the so-called Islamic State group in Baghdad, Iraqi police say.
A car bomb exploded on a busy street in the Karrada district late on Saturday.
The mainly Shia area was busy with shoppers late at night because it is the holy month of Ramadan.
Iraqi PM Haider al-Abadi was met by angry crowds while visiting the scene on Sunday. He later declared three days of national mourning.
A second bomb also exploded at about midnight in a predominantly Shia area north of the capital, killing another five people.
The bombing in Karrada is the deadliest in Iraq this year and comes a week after Iraqi security forces recaptured the city of Falluja from Islamic State (IS) militants.
Police said the dead included at least 15 children and six policemen. At least 12 other people were missing, feared dead.
One senior Iraqi official warned that the death toll could rise still further.
The blast, which struck close to midnight, came from a refrigerator van packed with explosives, reports said.
Many of those killed were children, Associated Press reported. Families gathered on the street on Sunday for news of missing loved ones.
The explosion caused a huge fire on the main street. Several buildings, including the popular al-Hadi Centre, were badly damaged.
Hussein Ali, a former Iraqi soldier, told AFP news agency that six workers at his family’s shop had been killed and their bodies so badly burned that they could not be identified.

Source: BBC