I read 3 blasts. The first was NS2. Then two more on NS1. NS2 was not really online yet so that, alone, could have been a warning shot. But taking out NS1 is much more serious.
Like others I doubt Russia would do it to themselves. They don’t need to. They can just shut the valves without destroying the infrastructure. Any theory could be explored since Germany is such an economic powerhouse in the Eurozone, just about anyone would want to take them down a few pegs.
The problem is the collateral damage lack of energy would do to the populations. So you could run the gamut from left wing environmental terror to oil & gas companies who want to prove a point to any nation state that could benefit. Can Iran export LNG? They have submarines too. They could be pushing to get a nukes for trade deal done quickly.
Danish prime minister ‘cannot rule out’ sabotage to Russian gas pipelines
https://www.itv.com/news/2022-09-27/danish-prime-minister-cannot-rule-out-sabotage-to-russian-gas-pipelines
The Danish prime minister has said she “cannot rule out” sabotage after three leaks were detected on Russian natural gas pipelines running under the Baltic Sea to Europe.
The Swedish Maritime Administration said on Tuesday that two leaks were discovered in the Nord Stream 1 pipeline, which partly runs in Swedish waters. Danish authorities also have confirmed the leaks.
The Danish Maritime Authority has issued a navigation warning and established a prohibited area with the aim of ensuring that ships do not sail near the leaks.