Police will this morning resume their search for the person reported missing in the water at Glenorchy.
The Police National Dive Squad is expected to arrive in Glenorchy this afternoon.
The search began at 4pm Thursday after emergency services were notified of a person in trouble in the water.
Otago Lakes Central Area Commander said the search is continuing assisted by LandSAR volunteers.
Police are providing support to the family of the missing person.