A boat belonging to a Marlborough man missing for more than a week has been recovered overnight but there is no sign of Kerry Blair aboard.
Mr Blair, 55, was last seen on March 8 when he launched his nine-metre aluminium boat Erie in the Marlborough Sounds.
His boat was discovered around 200km off the coast of Taranaki by a Royal New Zealand Air Force Orion on Friday evening.
Attempts to secure it and bring it to shore have been hindered by stormy weather and heavy seas, but authorities managed to board the vessel overnight.
Mr Blair was not on board, and police said there was no immediate indication on what happened to him.