Sweden and Finland Investigate Suspected Sabotage of Baltic Sea Telecom Cable

Authorities are probing damage to the C-Lion1 cable, the latest in a series of undersea infrastructure disruptions in the region.

Swedish and Finnish officials are investigating suspected sabotage of the C-Lion1 fibre-optic cable linking Finland and Germany, which was recently found damaged in Sweden's economic zone.
The C-Lion1 cable has been damaged three times in recent months, with incidents in November and December 2024, though data traffic remains unaffected.
Swedish Prime Minister Ulf Kristersson emphasized the seriousness of the situation, linking it to broader security concerns in the Baltic Sea region following Russia's invasion of Ukraine in 2022.
The European Commission announced plans to allocate nearly €1 billion to enhance undersea cable surveillance and establish emergency repair capabilities across the EU.
NATO has increased its presence in the Baltic Sea, launching a patrol mission in January 2025 to safeguard critical underwater infrastructure amid heightened regional tensions.