Russian gas supplies to EU states via Ukraine have ended after a five-year deal between Ukraine’s gas transit operator Naftogaz and Russia’s Gazprom expired.

Ukrainian President Volodymyr Zelensky said earlier that his country would not allow Russia to “earn additional billions on our blood” and had given the EU a year to prepare.

The European Commission said the continent’s gas system was “resilient and flexible” and that it had sufficient capacity to cope with the end of transit via Ukraine.

Russia can still send gas to Hungary, as well as Turkey and Serbia, through the TurkStream pipeline across the Black Sea.