Russia's gas giant Gazprom said on Thursday it would no longer be able to export gas through Poland via the Yamal-Europe pipeline due to Moscow's sanctions on the owner of the pipeline's Polish section, Reuters news agency has reported citing the Russian company. On Wednesday, Russia imposed sanctions on Gazprom's European companies, including Poland's EuRoPol Gaz, the owner of the Polish section of the Yamal-Europe gas pipeline, in which the Russian giant has 48 percent.