A statement posted online by the militant group paid tribute to Wa'il Adil Hasan Salman al-Fayad, also known as Abu Mohammed al-Furqan. The statement just referred to him by his alias. It did not say when, where or how he had died.
The Pentagon said last month that a U.S.-led coalition air strike on Sept. 7 had killed al-Fayad.
It said he was minister of information, overseeing Islamic State's propaganda, and a prominent member of its Senior Shura Council, or leadership group.
IS's statement referred to al-Fayad as head of its media arm.