Russia will stop gas supplies to Austria from Saturday, the Austrian energy company OMV announced on Friday.
OMV said it had received notice from Gazprom Export, a subsidiary of Russian state energy giant Gazprom.
The halt in deliveries is seen as a response to an arbitration award by the International Chamber of Commerce, which awarded OMV €230 million ($242 million) in a dispute with Gazprom.
Austrian Chancellor Karl Nehammer was expected to make a statement later on Friday.
Austria remains heavily dependent on Russian gas, even as other EU countries such as Germany have tried to end their dependence after Moscow’s large-scale invasion of Ukraine in February 2022.