The Financial Times have a (gated) report on this:

baltic cables cut 20 November 2024 2

Via an ungated report:

  • Danish authorities appear to have narrowed down a possible culprit to Chinese bulker Yi Peng 3, which traveled over the reported incident site at the time of the failure. Its AIS track shows the vessel drifting back and forth for around an hour the morning of November 18.

More info here