The United States does not let buses through a zone around its Al Tanf base to evacuate refugees from the Rukban camp, the Russian Defence Ministry said on Tuesday.
"The evacuation of refugees from the Rukban camp is actually blocked because of the American side, which does not allow buses to evacuate refugees," the ministry said in a daily bulletin.
The United States has also refused to guarantee safe passage of humanitarian convoys inside a 34-mile area around the military base in southeastern Syria.
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