A woman detonated an explosive belt in a market east of the Shi’ite holy city of Kerbala on Friday, killing at least 30 and wounding 35.
Islamic State have claimed the attack in a statement on its Amaq news agency.
Security officials say the assailant hid the bomb under the customary full-body veil.
The attack comes as Islamic State is about to lose Mosul, the de-facto capital of the hardline Sunni Muslim group in Iraq, to a U.S.-backed Iraqi offensive launched in October.
