Russian Foreign Secretary Sergey Lavrov has dismissed claims his country was involved in the killing of 21 UN aid workers in Syria on Monday evening.
Speaking at the UN Security Council meeting on Wednesday, Lavrov said a US 'Predator-type' drone was responsible - adding that one left Incirlik Air Base in Turkey and flew across the same area.
He said any assumption Russia was involved is being used to distract attention away from the US-led coalition bombing of Syrian soldiers.
Lavrov's comments sparked an immediate reaction from UK Foreign Secretary Boris Johnson, who implied Russian involvement.
Johnson told reporters: "Put it this way, when you look at what happened to the aid convoy, there are only two possible culprits - there are only two forces capable of carrying out that strike, flying in that area.
"They are the Syrians and the Russians and we have our doubts over the Syrian capability to fly at night. You're left with a pretty strong conclusion."
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