The United States on Monday confirmed the killing of Abu al-Hassan al-Muhajir, Islamic State spokesman and a high-ranking figure within the jihadi group, in a separate US operation, according to a senior State Department official.
On Sunday, the Syrian Kurdish YPG militia said al-Muhajir was killed in a joint raid between Kurdish-led and US forces in northern Syria.
Follow Israel Hayom on Facebook and Twitter
Syrian Democratic Forces General Commander Mazloum Abdi said it was "a continuation of the previous operation" in which Islamic State leader Abu Bakr al-Baghdadi was killed on Saturday. He described the jihadist spokesman as Baghdadi's right-hand man.
Al-Muhajir was killed in the Syrian town of Jarablus in Aleppo province, said the US official, speaking to reporters on condition of anonymity.
The operation which led to "the demise of [Baghdadi's] No. 2, or one of his No. 2s," was also carried out by US forces, the official said, adding that the SDF had a big role in it.
Baghdadi, an Iraqi jihadist who rose from obscurity to declare himself "caliph" of all Muslims as the leader of Islamic State, died by detonating a suicide vest after fleeing into a dead-end tunnel as elite US special operations forces closed in on him, according to the US government.
Islamic State has no declared successor as leader. But the group has in the past proved resilient, continuing to mount or inspire attacks in the region and beyond despite losing most of its territory in recent years.