The Coast Guard's vessel KBV 001 Poseidon is located east of the vessel Yi Peng 3 in the Kattegat on Saturday, writes Expressen.
We will follow the Chinese vessel, that's all I can say, says Linnea Kappel, communicator at the Coast Guard, to the newspaper.
A vessel from Germany's Coast Guard has also positioned itself near Yi Peng 3.
Prosecutor Henrik Söderman, who is leading the preliminary investigation into suspected sabotage in connection with the cable breaks, does not want to comment on why multiple countries are now monitoring Yi Peng 3.
There's nothing I can say about that right now, says Henrik Söderman to TT.
Almost a week ago, it was discovered that two data cables in the Baltic Sea had been cut or damaged. This concerns a cable between Finland and Germany and one between Sweden and Lithuania.
The Chinese vessel Yi Peng 3, which is anchored in the Kattegat, has been said to be of interest in the investigation into the damaged cables.