Finnish and Swedish authorities are investigating a possible breach of an undersea cable in the Baltic Sea in Swedish waters.
The cable in question is the C-Lion 1, which links Finland and Germany. It has suffered damage in the past.
The location of the disruption was near the island of Gotland in Swedish economic waters, where a number of subsea cables have been damaged in recent months.
According to information obtained by Yle, the disruption may not have been caused by new external damage. Further investigation is needed, the source said.
A possible reason for the disruption may have been due to damage the cable suffered previously, according to the source.
Previous incidents
The C-Lion 1 submarine cable, operated by Cinia Oy, was last damaged on Christmas Day, with suspicions that the Cook Islands-flagged Eagle S oil tanker may have been responsible. The same cable was also damaged last November.
Hannu Muikku, Business Director at Cinia, told Yle that the cable damage is most likely a scratch or scrape on the cable surface.
"There is a defect in the cable sheathing, which means that the cable surface has been damaged in some way. The fibres inside the cable are not damaged," said Muikku.
He said it is in principle possible that the damage could also be caused by the cable rubbing against a rock on the seafloor.
Interior Minister Mari Rantanen (Finns) refused to comment on the cause of this latest incident or whether it was intentional.
"But there have been so many of these incidents that the likelihood of it being accidental is very small," she said.
Ministers were informed about the cable damage on Thursday. That same day Finland's National Bureau of Investigation (NBI) opened an investigation after being alerted about the cable damage on Wednesday
The C-Lion 1 is the only submarine cable from Finland that provides a direct connection to Central Europe.
Finland's National Cyber Security Centre on Friday said the incident has not impacted Finland.
Article updated 17:28 to add NBI, minister and Hannu Muikku comments.