MH370 search: Mini-sub Bluefin-21 completes first full mission in hunt for Malaysian jet

Operators aboard the Australian Defence Vessel Ocean Shield move the US Navy's Bluefin 21 autonomous underwater vehicle into position for deployment in the Southern Indian Ocean, as the search continues for the missing Malaysia Airlines Flight 370, in this handout picture taken April 14, 2014. - REUTERS

PERTH: A mini-submarine hunting for wreckage of a missing Malaysian airliner has completed its first full mission at the third attempt, officials said Thursday, as seabed data it retrieved was being analysed. 

The first two attempts to scan the deep Indian Ocean off western Australia failed to produce any results.