On Thursday, local media reported that a US airstrike in Syria eliminated al-Nusra Front leaders Abu Omar Sarakeb and Abu Omar al-Shami.

We don't have any info on this strike," the spokesperson stated. "We continue to support the Iraqi Security Forces and vetted Syrian opposition forces that are taking the fight to ISIL [Daesh]."

On Tuesday, Deputy National Security Advisor for US President’s Strategic Communications Ben Rhodes said the United States is open to working with Russia on countering the threats posed by al-Nusra Front and Daesh in Syria.

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