Poor weather is hampering efforts to find an Australian tramper in Fiordland.
A party of three activated a locator beacon at 6pm on Monday near Mintaro Hut on the Milford track.
Maritime New Zealand has located two of the trampers, but is still trying to find the third.
The agency said the weather is expected to get worse.
It officers are speaking to the two trampers to establish how they split up with the missing member of the party.