The search for a missing Christchurch man will resume tomorrow after 20 police and volunteers combed an area of thick bush near Arthur's Pass today.
Peter John Crowther has been missing since about 4pm on June 14, when he was seen leaving his workplace in the suburb of Addington.
He has not been in contact with family since and no sightings have been reported.
This week's search was sparked after the discovery of Crowther's vehicle in Arthur's Pass National Park, close to the Mt White bridge, on Sunday afternoon.
Police were not told of the find until 9.30am yesterday. About 20 police and volunteers had been sent to search the thick bush.
A helicopter was brought in to the search area briefly today to sweep up nearby rivers and check huts and shelters.
A police spokesman said nothing of interest had been found during today's search.
The search would resume tomorrow morning, weather permitting.
Conditions in the area, which was 500 to 600 metres above sea level, had been extremely cold with a high of only 2 degrees Celsius today.