US fears over Russian air strikes

However, the secretary of state John Kerry has said the United States would have âgrave concernsâ if Russia used the strikes to support President Bashar al-Assad against groups other than Islamic State or al-Qaeda,
Yesterday, some US-backed rebel groups claimed they were hit by Russian air strikes but those claims could not be confirmed. A moderate Western-backed rebel group said one of its leading officers was killed in central Homs province.