Damage to Baltic Sea telecoms cable may have occurred in January, operator says
Published by Global Banking & Finance Review®
Posted on February 24, 2025
2 min readLast updated: January 25, 2026

Published by Global Banking & Finance Review®
Posted on February 24, 2025
2 min readLast updated: January 25, 2026

The C-Lion1 telecoms cable in the Baltic Sea may have been damaged on January 26, coinciding with another cable outage. Authorities suspect sabotage.
STOCKHOLM (Reuters) - Finland's telecoms operator said on Monday that the damage reported last week to its C-Lion1 telecoms cable in the Baltic Sea may have occurred as early as January 26, the same day a cargo ship broke another undersea cable in the area.
Swedish and Finnish police said on Friday they were investigating a suspected case of sabotage of the C-Lion1 cable running along the seabed from Finland to Germany, while adding it was not immediately clear when the damage had occurred.
The Baltic Sea region is on alert and the NATO alliance has boosted its presence after a series of power cable, telecom and gas pipeline outages since Russia invaded Ukraine in 2022. Most have been caused by civilian ships dragging their anchors.
Operator Cinia said in an emailed statement on Monday that it believed the damage of the C-Lion1 had occurred on January 26 at 0237 a.m. Finnish time (0037 GMT) and that the cause was still unknown.
The time closely coincides with that of an outage of a nearby subsea fibre optic cable linking Sweden and Latvia, which was reported at the time.
A Swedish prosecutor said on February 3 he had concluded that a Maltese-flagged bulk carrier, the Vezhen, had ruptured the cable linking Sweden and Latvia with its anchor, but that it had been an accident and not sabotage.
The Vezhen passed the Sweden-Latvia cable at 0045 GMT on January 26, MarineTraffic data analysed by Reuters showed.
Swedish police did not immediately respond to a request for comment when contacted by Reuters on Monday.
Bulgarian shipping company Navigation Maritime Bulgare, which lists the Vezhen among its fleet, also did not immediately respond to a request for comment on Monday.
(Reporting by Anna Ringstrom in Stockholm and Louise Rasmussen in Copenhagen, editing by Terje Solsvik and Christina Fincher)
The damage to the C-Lion1 cable may have occurred on January 26 at 0237 a.m. Finnish time.
The cause of the damage to the C-Lion1 cable is still unknown, but Swedish and Finnish police are investigating a suspected case of sabotage.
The time of the damage closely coincides with an outage of a nearby subsea fibre optic cable linking Sweden and Latvia.
The Baltic Sea region is on alert, and NATO has boosted its presence following a series of outages since Russia invaded Ukraine in 2022.
The Swedish prosecutor concluded that the Maltese-flagged bulk carrier, the Vezhen, had ruptured the cable linking Sweden and Latvia with its anchor, but it was determined to be an accident.
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