Photo shared by the Danish Defense Command showing a gas leak at the Nord Stream 2 gas pipeline in the Baltic Sea off the Danish island of Bornholm on September 27, 2022. HANDOUT / AFP This is an event unprecedented. The Nord Stream and Nord Stream 2 gas pipelines, which link Russia to Germany across the Baltic Sea and are intended to supply Europe with Russian gas, were victims, Monday, September 26, of at least two explosions under marines. These resulted in three methane leaks off the Danish island of Bornholm, located between southern Sweden and Poland. Spectacular bubbling on the surface of the water, with a diameter ranging from 200 meters to 1 kilometer, was spotted by the Danish army, which released aerial images of the disaster on Tuesday. “These are deliberate actions, it is not an accident,” Danish Prime Minister Mette Frederiksen said at a press conference called on Tuesday, adding that she took the incident “very seriously”. Denmark has dispatched two military ships, the frigate Absalon and the environmental protection vessel Gunnar Thorson, as well as several helicopters to the scene. Marine traffic has also been banned within a five nautical mile (about 9 kilometre) zone around the leaks, as has aerial overflight below 1,000 meters altitude. On Tuesday afternoon, the Swedish police announced that they were opening a preliminary investigation for “aggravated sabotage”. Read also: Gas leaks on Nord Stream 1 and 2: what we know about suspected sabotage in the Baltic Sea According to the National Seismology Center at the Swedish University of Uppsala, two underwater explosions were detected on Monday by measuring devices, shortly before the gas leaks appear on the surface. One of the explosions had a magnitude of 2.3 on the Richter scale and was recorded at no less than 30 measuring stations in southern Sweden. The sea depth at the leaks – two are located in Denmark’s Exclusive Economic Zone, one in Sweden’s – is “70 to 90 metres”, according to Danish Energy Minister Dan Jorgensen. The Norwegian seismic monitoring organization Norsar claims to have also recorded the two tremors. The Kremlin says it is “extremely concerned” No explanation was given Wednesday morning on the origin of these explosions, but the thesis of an accident is a priori dismissed by the authorities. If the ruptures of submarine telecommunications cables, torn by an anchor or the trawl of a ship, are nothing exceptional, that of a gas pipeline, whose walls are made up of 12 centimeters of concrete and steel, seems implausible, especially if the incident takes place at different places on the same day. The size of the explosions – one of them was of a power equivalent to 100 tons of TNT, according to the readings carried out by the seismologists – also leaves little doubt about the voluntary nature of the detonations. You have 54.69% of this article left to read. The following is for subscribers only.