British Foreign Secretary Boris Johnson said there was no evidence that Russia knew of plans for the poison gas attack on Syria's Idlib.
"Did they know that Assad was going to unleash chemical weapons? We have no evidence for that, we don’t know whether the Russians were involved at all," Johnson told Sky News.
"It may very well be that they (Russia) have simply been betrayed by their client, by the guy they have been backing. Now is the time for them for them to recognise that and help the rest of the world and far more, help the people of Syria to move forward," he added.
