Swedish police, alongside Chinese authorities, boarded the Chinese ship Yi Peng 3, which has been anchored in the Kattegat for over a month.
The ship is under investigation for potential involvement in the recent sabotage of two critical communication cables in the Baltic Sea.
These cables, connecting Sweden to Lithuania and Finland to Germany, were damaged in mid-November, coinciding with the ship's passage through the area.
While Chinese officials lead the onboard investigation, Swedish police are participating as observers.
The ship's prolonged stay in international waters has raised suspicions, with theories suggesting its anchor may have caused the damage.
Diplomatic discussions between Sweden and China continue, as Sweden seeks clarity on the incident.