A suicide bomber detonated an explosives-rigged vehicle at a popular Baghdad ice cream shop early on Tuesday, killing at least 13 people, reports Aljazeera.
The attack in Karrada district in central Baghdad also wounded at least 30 people, officials said. Videos posted to social media showed chaotic scenes on the streets surrounding the blast.
A number of wounded lay on the ground, others propped themselves up on the colourful park benches outside the ice cream shop.
One young girl, wearing a ribbon and bow in her hair, wandered the scene dazed.
The attack struck just days into the holy month of Ramadan when Muslims fast during daylight hours. As families break their fast after sundown, restaurants and cafes in Baghdad quickly fill up.
The officials say the bombing in central Baghdad involved explosives in a parked car that a bomber detonated. The officials spoke on condition of anonymity in line with regulations.
ISIL claimThe Islamic State of Iraq and the Levant`s (ISIL) Amaq website said the suicide bomber targeted a "gathering of Shia".
ISIL considers members of Iraq`s Shia Muslim majority to be heretics and frequently carries out attacks against them.
"Families were out and the place was crowded," Hayder al-Khoei, a London-based Middle East expert, told Al Jazeera.
"[ISIL] wants Iraqis to fear going out and this is to show they are still present and able to strike the heart of the Iraqi capital, even as they are being defeated on the battlefield."
Monday`s attack comes as Iraqi troops are slowly pushing ISIL fighters out of their last strongholds in the northern city of Mosul.
Iraqi commanders say the offensive, which recently entered its eight month, will mark the end of the ISIL caliphate in Iraq, but concede the group will likely increase insurgent attacks in the wake of military defeats.
Al-Khoei explained that the armed group "timed Tuesday`s attack to cause maximum impact".
"The suicide bomber detonated himself just after midnight. It was a hot day and he targeted a popular ice cream parlour in Baghdad."
Memories of 2016 attackRamadan is often marked by an uptick in violence in Iraq.
Last July, towards the end of the holy month, ISIL used a big truck bomb during Ramadan at a busy Karrada market packed with people shopping after sunset and preparing for the Eid celebration.
Close to 300 people were killed in that attack. The blast was the single deadliest event in Baghdad since Saddam Hussein was toppled in 2003.
ISIL claimed responsibility for that bombing, which ultimately led to the resignation of Iraq`s interior minister.