A 73-year-old yachtie may have disappeared after trying to swim after an inflatable boat after it drifted away from his ketch, police say.
Donald Ravenscroft's family reported him missing from his ketch, Rakiah, which was moored in Mahurangi Harbour near Warkworth north of Auckland about 6pm yesterday.
His dinghy was found ashore but he has not returned to his home in the Warkworth area.
Police said his ketch was still moored at the river estuary at Mahurangi East.
They suspected he might have attempted to swim after his inflatable boat after it drifted away from the launch.