Police are going over sonar images to find evidence of a paddle board rider missing from a North Shore beach.
The police launch Deodar may be out on the water later on Friday if they can identify objects that might be the missing man, aged in his 50s.
He entered the water on his paddle board near the north end of Takapuna Beach on Wednesday afternoon. His board was later found but there has no sign of the man, despite a full day of searching on Thursday.
Police face the problem of where best to search and the sonar images may help identify targets.
"We don't know how far he paddled out, that's half the problem," Senior Constable Anthony Flanagan told NZ Newswire.
Navy sonar equipment may be used in the search.
Police had asked for any sightings of the man, or if he was seen falling from the board, but no one had come forward.
NZN