Earlier in the day, a car exploded in front of the consulate, killing one person and injuring at least nine. No Italian citizens were hurt in the attack.
"I.S. says it carried out the car bomb attack near the Italian consulate in #Cairo — one person was killed and at least four others injured," the news outlet tweeted.
Sources in Egypt's prosecutor’s office told local Masrawy news website that the type of explosives used in Saturday's explosion was similar to last week’s deadly attack on the country's prosecutor general. The murder of the official took place after an IS affiliate in Egypt published a video threatening judicial officials in the country.