Items of interest have been found in the search for missing British tramper Stephanie Simpson in Mount Aspiring National Park.
Simpson, a 32-year-old from Essex who was on a working holiday, was reported missing after she did not return to work on Monday. She had been tramping in the park over the weekend.
Police are not providing details of the items they have located.
The search area has been narrowed to the Pyke Creek area of extremely challenging terrain.
Police said LandSAR staff were being assisted by dog teams, Alpine Cliff Rescue staff from Fox Glacier and a canyon Search and Rescue team from Wānaka.
Due to the difficult conditions in the area, police did not require any additional volunteers but wanted to thank members of the public who offered help, a spokesperson said.
Simpson's parents were reported to be flying to New Zealand to help with the search.