Rare twin suicide bombings struck a market Thursday in central Baghdad, killing at least 32 people and injuring 110 more, according to Iraq’s Health Ministry. The blasts came midmorning as people were shopping for secondhand clothes at a market in Tayaran Square. Video footage showed the second explosion ripping through the air as sirens blared and casualties were raced away in motorized rickshaws. Other images from the scene showed bodies strewn on the ground amid upturned tables and piles of unsold jackets.

Islamic State claimed responsibility for the attack, Reuters reported, citing Iraqi Civil Defense chief Maj. Gen. Kadhim Salman. In a statement posted on the group’s Telegram communications channel early Friday, Islamic State claimed two of its men blew themselves up in Tayaran Square.

Although security forces continue to fight ragtag bands of Islamic State militants in Iraq’s peripheral regions, major security incidents in the capital are rare. Thursday’s attack was the deadliest to strike the capital in years. The last mass-casualty attack, striking the same square, took place in January 2018 and killed 27 people.

Khalid al-Mahna, a spokesman for the Interior Ministry, said the suicide bomber detonated his explosives after attracting a crowd by feigning sickness in the middle of the market.

When shoppers came to help those injured by the first blast, he said, someone else detonated a second bomb.

Thursday’s attack shattered a sense of relative security in the capital, raising questions about the Iraqi security forces’ preparedness in the face of a militant threat that has been diminished but by no means erased. Army units and special forces continue to arrest alleged Islamic State members at their homes in urban centers and say that sleeper cells remain prepared to mount strikes.