An unexplained fault in an undersea telecommunications cable linking Finland and Germany has disrupted communication services, the company that runs the link said Monday.

The cause of broken underwater cable in the Baltic Sea is not yet known. The C-Lion1 cable is the only submarine cable connecting Finland to Europe.

Moscow's suspension of gas for Austria, the main receiver of gas via Ukraine, means Russia will now only supply significant gas volumes to Hungary and Slovakia, in Hungary's case via a pipeline running mostly through Turkey. In contrast, Russia met 40% of the European Union's gas needs before Moscow's 2022 invasion of Ukraine.

Russian gas exports through Ukraine to Europe - the main transit route for the gas to the EU - were stable on Monday, according to Kremlin-controlled energy company Gazprom, despite the company cutting off gas supplies to Austria's OMV.

Russia halted gas supplies to Austria on Saturday in a dispute over payments but was still pumping steady volumes to Europe via Ukraine after remaining buyers asked for more gas. Russia, which before the Ukraine war was the biggest single supplier of natural gas to Europe,