KIEV, Nov. 15 – Ukraine is implementing its obligations to carry out transit of Russia gas to Europe in full, and doubts expressed by the Russian president about a part of a continuous long-lasting discriminative campaign, Ukrtransgaz said in a statement on Tuesday.

"Ukraine was, is and will be a reliable gas transit country. The statement that the country allegedly unlawfully pumps gas is the continuous long-lasting discriminative campaign of the northern neighbor," the operator of the Ukrainian gas transport system said.