Danish and Swedish officials on Tuesday said two leaks had been identified on the Nord Stream 1 Russia-Europe gas pipeline in the Baltic Sea. The news came only hours after a similar development on its twin pipeline, Nord Stream 2. Both conduits have become flash points in the escalating energy war that has sent gas prices rocketing since Russia’s invasion of Ukraine.What do we know so far?Officials said a pressure drop was detected in the Nord Stream 1 undersea gas channel soon after a similar fall was detected in its sister pipeline, Nord Stream 2. Both of Nord Stream 1’s two lines are affected, while one of Nord Stream 2’s pipelines showed a drop in pressure. Marine authorities identified a gas leak southeast of the Danish island of Bornholm as the likely cause of the issue affecting Nord Stream 2. Danish officials warned of a threat to shipping in the area and asked vessels to steer clear. Swedish authorities on Tuesday said there were two leaks on Nord Stream 1 — one in the Danish maritime economic zone and the other in the Swedish one. The two leaks were reported to be very close to one another. The German economy ministry said it was investigating the incident. “We currently do not know the reason for the drop in pressure,” it said.Blasts registered by Swedish seismologistsSeismologists from Sweden’s National Seismology Centre (SNSN) told public broadcaster SVT that powerful blasts had been registered in the areas of the gas leaks on Monday. “There is no doubt that these were explosions,” SNSN seismologist Bjorn Lund told SVT. Denmark’s armed forces meanwhile released footage showing bubbles on the surface of the Baltic Sea above the Nordstream 1 and 2 pipelines and reported that the largest of the leaks had caused surface disturbance of around 1 kilometer (0.62 miles) in diameter. What’s the significance?Both of the pipelines were built to carry natural gas from Russia to Europe, although the Nord Stream 2 pipeline was never activated. German officials have not yet provided any information on the possible cause of the damage. However, Berlin’s Tagesspiegel newspaper cited German security circles saying that sabotage was strongly suspected. “Our imagination no longer allows for a scenario in which this is not a targeted attack,” the newspaper quoted its source as saying. Denmark’s Prime Minister Mette Frederiksen said it was “hard to imagine” that the leaks were “accidental.”Speaking to Danish media while on a visit to Poland, Frederiksen said: “It’s an unusual situation, to have three leaks a distance from each other. That’s why it’s hard to imagine that it’s accidental.” Ukraine blamed the leaks on Moscow.