A dispute between Russia and Ukraine has sparked concerns over possible gas shortages in Europe if Moscow pulls the plug on its supplies to Kiev, which would also cause difficulties for the main export pipeline across Ukraine to central and western Europe.
The energy ministers of Ukraine and Russia on Wednesday (28 December) failed to reach a deal to resolve the crisis, but they agreed to resume their talks on Thursday.
Russia's state-controlled monopoly Gazprom warns it will shu...
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