Police are appealing for information about the whereabouts of Christchurch teen who has not been in touch with his family for 24 days.

Two children who sparked a major police search after they stole away from a Tuakau home in the dead of night are now believed safe with family.

Police are appealing for any sightings of a Hawke's Bay man who's not been seen all weekend.

A woman with a mental impairment has been missing for two days and police now say they hold grave concerns for her.

The search continues for two siblings who haven't been seen since Monday night when they left a rural South Auckland property with a large suitcase.

Watch: At a police conference police said they were still not sure why the siblings had fled the property.

Police are concerned for the safety of a 78-year-old Taupo Alzheimers sufferer who has not been seen since putting his rubbish bin out three days ago.

Two six-year-old girls who were missing with a Bay of Plenty woman have been safely returned.

Police are appealing for help to locate a 68-year-old man who has gone missing on his mobility scooter from the Auckland suburb of Mt Wellington.

Police are looking for a 59-year-old man missing since Monday.

A 12-year-old boy with health problems who went missing in Christchurch has been found safe and well.

Police are looking for Donald Adam Summer who went missing since yesterday morning. He is also known as Donald Adams or Don.

Missing 14-year-old Faith Nevalagi found after she was last seen about midnight on Saturday in Onehunga.

The family of a hunter missing in bush as temperatures dropped to near freezing are relieved he has been found and still has his "cheeky smile".

Police have found a 74-year-old woman missing from Raglan since Monday.

Searches throughout Buller have failed to find missing Westport man, Willem Hendrik van Vuuren, aged 54.

Emergency services are tonight searching for a pensioner missing north of Wellington.

Nelson Police are trying to confirm a sighting of a female hitch-hiker in the Richmond area today as the search for missing Wakefield woman Rachel Stokes continues.

A mother and daughter who became lost in a North Island bush had to huddle together for warmth and ration their supplies after the terrain became impenetrable.

Police are seeking assistance in locating a Tauranga teenager, believed to be somewhere in the Dunedin area.

Police are appealing for help to locate missing 20-year-old Mataamua Tawaroa.

Police have concerns for missing Raniu man Wilhelmus 'Bill' Staijen due to a medical condition.

The 3-year-old, named Aroha, was discovered playing with a friend and was found in "good spirits,'' police said.

Police about 6.45pm said they were searching for the girl, named as Mila, in the Broomfield and Yaldhurst areas.

The loyal dog of a missing man keeps escaping from his home to wait for his owner in the spot he disappeared from.

Kerry Morgan, 53, has not been seen since yesterday afternoon when he went for a walk with his dog by the Waikato River.

A New Zealander facing charges over an alleged Kenyan gold mine heist has reportedly failed to show up at court and now a warrant for his arrest has been issued.

The boy was wearing only a nappy when family believe he escaped out a window and went to the neighbour's house, the boy's aunt said.