Images show the Nord Stream 1 pipeline, through which a third of Russian gas supplies passes to reach the EU. Closed since 11 July for a 10-day routine maintenance, Europeans fear that Moscow won't turn the tap back on Thursday 21 July. In previous weeks, Russia had already cut 60% of its gas deliveries via the pipeline. The 1,224-kilometre (760-mile) long Nord Stream 1 is a system of twin pipelines running under the Baltic Sea, stretching from Russia's Vyborg to Lubmin in northeastern Germany. From there, a network of pipelines transports the gas into the European grid. IMAGES of the pipeline Nord Stream 1