A group of five trampers caught out in the cold inadvertently called for a medical evacuation instead of sending a general call for an evacuation.
The call came from near Lake Thompson in the Stuart Mountain Range on the western side of Lake Te Anau at 8.15am yesterday.
Senior Sergeant John Pine, of Invercargill, said the YMCA group, comprising four youths and an experienced team leader, tramped into the region but ran into foul weather.
The cold and windy conditions proved too much and they activated an alert, Mr Pine said.
They believed they sent a "please come pick us up" alert but instead transmitted an urgent medical alert instead, he said.
A helicopter was deployed from Te Anau with emergency staff on board but returned without any of the trampers.
They were all safe and well and would be coming out later today with the help of Department of Conservation staff, Mr Pine said.
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