Later in that video I posted above, the presenter follows the path of the ship in question in the latest cable severance by GPS positioning, and time stamps are applied per the ship's reporting of position.
There is a brief point after the cable was damaged where the ship slows quite a lot then speeds up again and the presenter speculates that this point may have been where they pulled up the anchor (or whatever device was used to sever the cable). The ship was confronted and seized soon after that point in time by the Swedish Coast Guard.
I agree with Boombox that that cable cut, if those images are actually from one of the cables cut in the Baltic recently, is too clean from just a standard anchor drag. The stress placed upon it by a lateral force such as an anchor pulling on it would cause it to fray at the break, along the lines of a rope or a piece of string being frayed. It would not be a clean cut. That clean cut has to come from some sort of saw, which I guess could be fitted to to an anchor, substituted for an anchor or perhaps dropped from the bow of the boat. It would be interesting to look at the seabed around that cable cut. (I hope that they took photos.)