An attempt to salvage the wreck of the Enchanter — which sank off North Cape on Sunday night with the loss of five lives — has failed.
The vessel's partly-submerged hull sank this afternoon as it was being towed to sheltered waters and is now on the sea bottom.
Further salvage attempts are unlikely.
The sinking is a blow to investigations by the Transport Accident Investigation Commission, New Zealand Police, Maritime New Zealand and potentially by WorkSafe.
Northland harbourmaster Jim Lyle said the sinking was unfortunate and occurred despite the best efforts of salvage contractors.