Vladimir Putin has expressed frustration at Washington's refusal to publish the Syrian ceasefire deal reached with Russia, but says Moscow will not unilaterally release it.
"I don't really understand why we have to keep such an agreement closed," Russian president Mr Putin was quoted as saying today during a trip to Kyrgyzstan.
He suggested Washington's resistance stems from a hope to retain the combat potential of forces fighting the Syrian government.
Mr Putin said: "This comes from the problems the US is facing on the Syrian track - they still cannot separate the so-called healthy part of the opposition from the half-criminal and terrorist elements.
"In my opinion, this comes from the desire to keep the combat potential in fighting the legitimate government of Bashar Assad. But this is a very dangerous route."