The Police National Dive Squad is back on Lake Rotoiti this morning searching for a person missing on the lake.
The dive squad arrived from Wellington yesterday and was back out on the water this morning looking for a person who apparently "went under" about 3.45pm on Sunday.
A police spokeswoman said she was unsure whether the shoreline search was continuing today but the dive squad were on the water.
No details have been released by police about who they are looking for, except that it was an adult.
Police would not confirm their gender or what activity they were doing on the lake when they disappeared.