Royal Marines and crime-agency officers spent six hours seizing the Smyrtos, which now sits anchored off England's southern coast, the UK government said.
94 instances saw vessels enter actual UK territorial waters, and a Russian frigate escorted one tanker through the Channel — with zero publicly confirmed boardings.
Defense sources confirmed military seizure options in discussions with NATO allies, while Lloyd's List Intelligence tracked 23 rogue vessels in British waters in January alone, the Guardian reported.