Search for Malaysia Airlines Flight 370 Still Coming Up Empty

b_250_0_16777215_00_images_obgrabber_2014-04_72a0d04858.jpg (NEW YORK) -- Forty-five days after Malaysia Airlines Flight 370 disappeared on its way from Kuala Lumpur to Beijing, there has still been no sign of any wreckage in the south Indian Ocean. It's expected that the air and surface search for the plane with 239 on board will continue indefinitely. However, the Bluefin-21 autonomous underwater vehicle, which is taking sonar scans of the ocean floor, might end its operation within a week.

The Bluefin has focused its search on a 6.2-mile circle of seafloor about 1,200 miles northwest of the Australian city of Perth. The sub has gone deeper than recommended, which could potentially damage its equipment.

It's been almost two weeks since the last acoustic ping from Flight 370's black box recorders was heard in the area where the search is concentrated.  In all likelihood, the recorders' batteries have died.

Meanwhile, Malaysian Deputy Foreign Affairs Minister Hamzah Zainuddin met with families of the passengers and crew Sunday to discuss financial assistance.

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