This is the best summary I could come up with:

After investigators delved into a series of undersea explosions that blew apart the Nord Stream natural gas pipelines linking Russia to Western Europe in fall 2022, intelligence agencies came to a general agreement: The evidence pointed toward pro-Ukraine forces, even if the question of who might have been directing them remained a mystery.

It even refused to team up with its closest neighbors, Denmark and Germany, a sign of how nervous the issue was making officials in Stockholm at a moment when it is still maneuvering for acceptance into the NATO military alliance.

In an email Wednesday, Mr. Ljungquvist, the national security prosecutor who made the decision to close Sweden’s investigation, said the question of jurisdiction was more complicated than where the crime had been committed.

Mr. Ljungqvist declined to say more, citing continued confidentiality in the case, which Sweden has the ability to revive, he said, as well as cooperation with German authorities in their investigation into the Nord Stream sabotage.

“The Swedish armed forces continue to monitor the situation in the Baltic and other areas near Sweden,’’ Mr. Adamsson added on Wednesday, “in close cooperation with our international partners, soon allied, we hope.”

The crime scene, along the floor of the Baltic Sea, provided little concrete evidence, something the Swedish authorities acknowledged in the early months of the investigation even as they closely guarded their inquiry.

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