Russian military jets have carried out air strikes in Syria for the first time, targeting what Moscow said were IS positions.
However, the secretary of state John Kerry has said the United States would have “grave concerns” if Russia used the strikes to support President Bashar al-Assad against groups other than Islamic State or al-Qaeda,
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07:48 Assad ally Russia summons Israeli diplomat over Syria strike20
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16:23 Tillerson’s next challenge: Reassuring senators on Russia over lunch19