Belarus President Alexander Lukashenko is blocking the passage of Russian gas supplies to Europe after Russia cut supplies to Belarus by a third in a debt dispute.
''I have now ordered the government to shut down transit through Belarus until Gazprom pays for transit,'' Mr Lukashenko said during a meeting with Russian Foreign Minister Sergei Lavrov.
Russia earlier announced it was reducing supplies to Belarus by 30 per cent of normal daily volume because Minsk had taken no steps to resolve a debt to Gazprom of nearly $US200 million ($A229 million).
Belarus says Gazprom owes it more than $US200 million in transit fees. Russia supplies a quarter of Europe's gas via Belarus and Ukraine.