Leaders of the two countries have exchanged accusations and threats ahead of an anticipated halt to Russian gas flows via Ukraine

Supplies of Russian gas via Ukraine are due to stop from the early hours of Jan. 1 after the current five-year deal expires

Now Slovakia is urging the European Commission to address the looming halt of Russian gas supplies through Ukraine, saying the economic impact on the EU will far outweigh the effect on Russia. Ukrainian President Volodymyr Zelensky is set to block Russian gas flows through his country from January,

Ukraine will quadruple gas transit tariffs for its domestic customers starting Jan. 1 when a deal to transport Russian gas through Ukrainian pipes expires, the National Energy Regulatory Commission said during a meeting on Dec.