Russia-Germany gas pipeline shut for maintenance

A major gas pipeline from Russia to Germany shut down for annual maintenance on Monday amid German concern that Russia may not resume the flow of gas as scheduled.The Nord Stream 1 pipeline, Germany's main source of Russian gas, is scheduled to be out of action until July 21 for routine work that the operator says includes “testing of mechanical elements and automation systems.”The operator's data showed the gas flow dropping as planned on Monday morning.