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The Russian Central Bank says it has prepared an emergency scenario in case the situation deteriorates.
A cease-fire agreement was also reached between the Ukrainian troops and the rebels from the so-called Lugansk People's Republic.
Moscow was initially scheduled to launch the gas pipeline in 2018.
A video showing yet another Belarusian citizen fighting in Donets Basin has appeared on the Internet.
All the 28 EU members state need to support the visa free regime with Ukraine for it.
A few thousand people have demanded the resignation of the Russian government.
The verdicts were pronounced on November 29.
Ukrainian security agency accused 83 Russian journalists of disseminating anti-Ukrainian propaganda.
Nobody has died but some people have been injured.
