The Swedish navy has recovered an anchor from the seabed of the Gulf of Finland.
It may get Finnish authorities closer to proving their suspicion that a Russian oil tanker, Eagle S, damaged the Estlink 2 electricity cable between Finland and Estonia by dragging its anchor.
In the wake of the Christmas Day incident, eight Eagle S crew members suspected of aggravated sabotage and telecommunications interference were given a travel ban preventing them from leaving their ship.
The UK-led Joint Expeditionary Force has also launched an operation to monitor Russia’s shadow fleet of sanction-evading vessels.
Eagle S is thought to be one of them.