As the cold winter months set in, Russia has renewed threats to cut off gas to Europe if Ukraine begins to illegally siphon supplies.

In a statement on Wednesday, Prime Minister Vladimir Putin said that theft of unpaid energy resources would result in a supply cut for the rest of the continent, which receives much of its gas through pipelines crossing Ukrainian territory. “If they pay us for supplies for domestic consumption, they’ll get them,” he said. “If they don’t pay…they won’t get them. If they don’t get them, likely, there will be siphoning from the export pipeline,” in which case the supply would be cut entirely.