The signal is coming from the remote Queen Alexandra Range, which lies in New Zealand's rescue sector.

BBC: Antarctic search for missing plane carrying Canadians

The aircraft was believed to have been flying at a height of 13, 000 feet in the rugged Queen Alexandra Range.

CNN: 3 believed dead after plane wreckage found in Antarctica

The Queen Alexandra Range, about 100 miles long, was named by Ernest Shackleton during the British Antarctic expedition in 1907-1909.

CNN: STORY HIGHLIGHTS

Searchers found the plane, a Twin Otter aircraft carrying three people, close to the summit of Mount Elizabeth in Queen Alexandra Range, in Antarctica.

CNN: 3 believed dead after plane wreckage found in Antarctica

The aircraft is believed to be at a height of 13, 000 feet near the top of Mount Elizabeth, part of the rugged Queen Alexandra Range.

CNN: STORY HIGHLIGHTS