More than 100 people died Sunday in a car bombing that Islamic State said it carried out, an official of the Iraqi Interior Ministry said.

The attack came in Baghdad’s Karada district, where people were shopping for the upcoming Eid al-Fitr holiday.

A further 170 people were injured, the official said. It was likely that more victims were buried under the rubble of damaged buildings, the official said.

The attack follows several military setbacks suffered by Islamic State in Iraq amid a government push to retake areas controlled by extremist group.

Prime Minister Haider al-Abadi inspected the scene of the attack and vowed revenge, state broadcaster al-Iraqiya reported.

Al-Abadi accused what he called “terrorist gangs” of carrying out the bombing after “they were crushed on the battlefield.”

Last month, the Iraqi government announced that it had retaken full control of the mostly Sunni western city of Fallujah from Islamic State.

Independent website Alsumaria News reported that al-Abadi quickly left the bombing scane because of locals’ anger at the alleged inefficiency of security forces, which they blamed for the bombing.

A video posted online showed an angry crowd throwing stones and jerry cans at al-Abadi’s convoy. A voice could be heard in the video repeatedly shouting “a thief.”

There was no official comment in Baghdad.

In an online statement circulated by its supporters, Islamic State claimed responsibility for the attack. The group alleged that a suicide bomber targeted a crowd of Shiites.

The statement could not be verified.

The radical Sunni Islamic State regards Shiite Muslims as heretics.

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