US Navy to send 'Tuna' AUV in search for missing flight(4/5)

Photo taken on April 9, 2014 shows an autonomous underwater vehicle (AUV), named "Tuna", at Quincy in Massachusetts, the United States. The autonomous underwater vehicle is designed for deep-sea surveying. It's 5m long and weighs about 800kg. It has a depth rating of 4,570 meters, meaning it will be at its limit in the Indian Ocean search zone. [Photo/IC]