Yahoo New Zealand: It was flying horizontally and at a steady speed similar to that of the helicopter. by Heath Moore
'The mysterious object could be seen with the naked eye but couldn't be detected with the helicopter's radar, ground radar stations or air traffic controllers.
'Authorities ruled out that it was an aircraft as no craft had been authorised to fly in the area.
'The unexplainable object is twice seen emitting a type of gas or liquid with a "high thermal track of signal", a navy technician told the Huffington Post.
'"It can be concluded that the object has all the characteristics to be classified as an unidentified aerial phenomenon," said Alberto Vergara, lead analyst from the Chilean Air Force's photogrammetric department.'