China News Service, September 28. According to Germany's "Der Spiegel" reported on the 27th, the newspaper quoted anonymous sources as saying that the US Central Intelligence Agency (CIA) issued a vague warning to Germany this summer, saying that the natural gas pipeline in the Baltic Sea may become attack target.

  The German government received intelligence from the CIA this summer, according to an anonymous source, adding that Berlin believed at the time that the CIA was referring to the Nord Stream-1 and Nord Stream-2 gas pipelines.

A German government spokesman declined to comment.

  According to previous reports, on the 26th local time, leaks were found one after another in the "Nord Stream-2" and "Nord Stream-1" pipelines in the waters near Denmark and Sweden.

The head of the Danish Energy Agency said in a press release that leaks in natural gas pipelines are extremely rare.

RIA Novosti quoted Swedish TV (SVT) as saying that on the same day, two underwater explosions occurred in the area where the gas leaked from the "North Stream" natural gas pipeline.

  At present, the EU has called for an investigation into this.

Nord Stream AG, the operator of the Nord Stream pipeline, also said it was preparing an investigation and working with local authorities to assess the damage.

There is no information yet as to who might be behind it.