European nations are launching investigations into the cause of the leaks in the Nord Stream pipelines that link Russia and Germany through the Baltic Sea — already suspected by Scandinavian leaders to be acts of sabotage.
Germany's geological research center GFZ said that a seismograph on the Danish island of Bornholm, near where the leaks occurred, recorded spikes twice on Monday, the day when the Nord Stream 1 and 2 gas pipelines witnessed sharp falls in pressure.
The leaks reported are inDanish and Swedish maritime economic zones, not the nations' territorial waters.
Aerial photos by the Danish military show bubbling gas, with the areas in question ranging from 200 to 1,000meters in diameter.
Danish Prime Minister Mette Frederiksen said that the authorities assessed that there have been "deliberate actions. It is not an accident".