Russia deployed its military police in the Eastern Ghouta area east of Damascus on Monday to try to enforce a de-escalation zone it said it had agreed with the Syrian opposition.
The Syrian military declared a cessation of hostilities on Saturday in the rebel-controlled region near the capital.
The Russian Defence Ministry said in a statement on Monday that its military police had set up two checkpoints and four observation posts in the area.
Military police had also been deployed to try to enforce a different de-escalation zone in southwest Syria on Friday and Saturday, it said in the same statement, saying two checkpoints and 10 observation posts had been set up there.
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