A close friend of missing Australian tennis coach Paul Arber says a sighting of him in the Waikato River early on Sunday has given him hope that he is still alive.

Police are investigating the disappearance of an Australian man while visiting Hamilton.

Police are searching for a man who has been missing from his Wellington home since yesterday.

A Canterbury man who went missing from the Oxford area overnight was found alive in a ditch near his home this morning.

Important information regarding the disappearance of a Tauranga woman 27 years ago was ignored by police, a documentary maker claims.

Tauranga police have offered a $50,000 reward for information into the case of missing Tauranga woman Luana Deborah Laverne Williams who was last seen at her home on the 5th of June 1986 in Tauranga.

New information leads police to offer a reward of up to $50,000 to help them solve the mystery of the disappearance of Luana Williams from Tauranga 27 years ago.

Police hunting the parents of 'Maria', the blonde girl found living with gypsies in Greece have charged the couple she was found with, and released photos of them.

British police said the timeline and version of events surrounding the disappearance of Madeleine McCann has "significantly changed," allowing them to build their most detailed reconstruction of the case yet.

British detectives investigating the 2007 disappearance of Madeleine McCann in Portugal will on Monday publish new e-fits of men they want to contact, in a major public appeal.

Canadian Michael Hayes leaves NZ today knowing he achieved what he came to do by visiting the place where his son Connor was killed by a landslip last month.

A new picture of a possible suspect connected to the disappearance of Madeleine McCann will be released by UK police, a news report says.

West Coast police are asking tourism operators and white baiters to keep a close eye out for any signs of missing Canadian man Connor Hayes.

Concerns have been raised for an Auckland teenager who has been missing for a month.

Searchers looking for missing Canadians Connor Hayes and Joanna Lam have recovered a woman's body from the beach near Haast this afternoon.

The search for two missing Canadians on the West Coast has shifted to a recovery operation, police say.

The chance of finding a Canadian couple alive after their rental van was hurled down a remote West Coast gorge in a landslide is now very remote, police say.

Relatives of a Canadian pair whose van has been found smashed to pieces are holding out hope for their loved ones as police say they're looking for bodies.

It is likely a landslide in the Haast Pass hurled the campervan that two missing Canadian tourists were travelling in last Tuesday into the flooded Haast River.

Police searchers have released a haunting photograph of the wrecked campervan chassis belonging to two missing Canadian tourists.

Police continue their search for two Canadian tourists missing in the South Island, as fears mount following the discovery of parts of their wrecked van.

Parts of a wrecked vehicle being used by two missing Canadian tourists have been found near Haast.

A hunter has described how he and a mate spent an icy night in the bush huddled with their dogs for warmth after losing their way back to their ute.

Wellington Police have re-opened a missing person case from 2008 after receiving a new lead.