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

Ukraine on Wednesday halted Russian gas supplies to European customers through its pipeline network after a prewar transit deal expired at the end of 2024 and almost three years into Moscow's all-out invasion of its neighbor.

Central European gas flows have adapted to the halt of Russian supplies through Ukraine on Jan. 1, as increased shipments to the region from Germany and Italy make up the shortfall, data from network operators showed on Monday.