The Russian energy giant Gazprom said early Wednesday that it had suspended the flow of natural gas to Europe through a pipeline that had carried Soviet and Russian gas through Ukraine for nearly six decades.

Ukraine had refused to renew an agreement that allowed for the transit of Russian gas through its territory. The agreement expired on Wednesday, according to Gazprom.

Gazprom made the announcement in a post on the Telegram platform, saying that the gas had stopped flowing at 8 a.m. Moscow time on Wednesday.

The pipeline through Ukraine, built in the Soviet era to carry Siberian gas to European markets, was Russia’s last major gas corridor to Europe after the Nord Stream pipeline to Germany was sabotaged in 2022, possibly by Ukraine, and the closure of a route through Belarus to Poland.

This is a developing story.