They've been searching by air and on the surface of the ocean, but now the teams looking for the missing malaysia airlines plane are getting ready to search underwater.
Searchers are confident they know the general location of the plane -- based on acoustic signals detected earlier this month.
But the head of the agency supervising the search says there have been no further signals -- or pings -- since last week, so it's time to send an underwater vehicle to take a look.
HEAD OF THE JOINT AGENCY COORDINATION CENTRE (JACC), ANGUS HOUSTON, SAYING:
"The experts have therefore determined that the australian defence vessel 'ocean shield' will cease searching with the towed pinger locator later today and deploy the autonomous underwater vehicle, 'Bluefin-21', as soon as possible. "
But it could take months for the vehicle to scan the search area.
In the meantime, investigators are analysing another possible clue that was found on sunday.
HEAD OF THE