Mostly pro-Russian volunteers have set up a checkpoint outside a military base in an attempt to prevent tanks from leaving - creating barricades from tires, sandbags and strings of barbed wire outside the Kramatorsk Airfield in Ukraine.
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The checkpoint volunteers, who speak a Russian dialect and fly an independent flag, say they want to prevent tanks and armored vehicles from leaving the military base and hope that Russia will sent peace-keeping troops to the region.
Next to the checkpoint, they have set up a makeshift shelter wired with electricity.
A sign outside reads "NATO Nyet."