`` Balkan states have already started to suffer from the moves of the Ukrainian side , '' he said . Russia 's energy monopoly Alexander Medvedev accused Russia of siphoning supplies . Gazprom cuts off gas supplies to Ukraine on New Year 's Day . Company says Ukraine owes it $ 2 billion for past natural gas deliveries . Fears supplies to other Balkan customers will be affected .
Russia 's energy monopoly Alexander Medvedev accused Russia of siphoning supplies . Gazprom cuts off gas supplies to Ukraine on New Year 's Day . Company says Ukraine owes it $ 2 billion for past natural gas deliveries . Fears supplies to other Balkan customers will be affected .