The historic first marks a milestone in Washington’s bid to replace Russia as Europe’s top source of natural gas.

Pro-Russia separatist enclave, which fought against Moldova in 1992, declare a state of emergency over the end of shipments

Russia separatist region of Transnistria in Moldova on January 1. The people there are now really feeling the cold.

Fico has accused Kyiv of damaging Slovakia by not extending a gas transit deal with Russia. He has threatened to retaliate by cutting emergency electricity supplies to Ukraine and on Thursday said the government could also halt humanitarian aid or use its veto right in the European Union related to Ukraine issues.

Slovakia’s Prime Minister Robert Fico said he wasn’t ruling out the resumption of gas through Ukraine after a deal between Kyiv and Moscow expired at the beginning of this year.