FRANKFURT, Germany — A power cable that connects Finland and Estonia beneath the Baltic Sea has experienced an outage, leading to an investigation by Finnish officials, as confirmed by Prime Minister Petteri Orpo on Wednesday.

In a post on X, Orpo mentioned that power transmission through the Estlink-2 cable ceased on Wednesday, and authorities are looking into the situation. He reassured the public that Finland’s electricity supply remains stable despite this disruption.

Estonian network operator Elering indicated that there is sufficient backup capacity available to meet the electricity demand in Estonia, according to a report from public broadcaster ERR.

Concerns about underwater infrastructure in the Baltic region have heightened among officials. Recently, two data cables were cut—one linking Finland and Germany, and the other connecting Lithuania and Sweden—in November.

Germany’s defense minister expressed that authorities must consider the possibility of sabotage regarding the recent disruption, although he did not present any evidence or specify who may be behind it. These comments were made during a speech addressing the risks of hybrid warfare, particularly from Russia.

Additionally, the Nord Stream natural gas pipelines, which previously supplied gas from Russia to Germany, were compromised due to underwater explosions in September 2022. This incident has been labeled as sabotage, prompting ongoing criminal investigations.

The Estlink-2 cable was out of operation for much of this year due to repairs from damage linked to a short circuit, which may have been caused by the cable’s intricate positioning in the sea, as reported by ERR.