The country’s prime minister said the incident, the latest in a series of disruptions to undersea infrastructure, underscored the danger of a so-called Russian shadow fleet.

It’s the latest in a spate of murky disruptions to undersea cables that have put European authorities on high alert and heightened fears of sabotage by Russia.

Police and media reports say that Finnish authorities have detained a Russia-linked ship as they investigate whether it damaged a Baltic Sea power cable and several data cables.