Chinese ship finds 'pulse signal', no confirmation MH370
A handout photo taken on April 4, 2014 by Australian Defence shows the towed pinger locator on the deck of Australian Defence vessel Ocean Shield in the first search for the black box of Malaysia Airlines flight MH370 in the southern Indian Ocean - by Lsis Bradely Darvill
The signal had a frequency of 37.5kHz per second -- identical to the beacon signal emitted by flight recorders.
A black box detector deployed by the Chinese search ship Haixun 01 picked up the signal at about 25 degrees south latitude and 101 degrees east longitude, the official Xinhua news agency said.
It is yet to be established whether the signal detected by Haixun 01 was related to the missing jet.
Malaysian authorities believe satellite readings indicate MH370 crashed in the Indian Ocean, far off Australia's western coast, after veering dramatically off course during a flight from Kuala Lumpur to Beijing.
But no proof has yet been found that would indicate a crash site.
Authorities still have no idea how or why the plane vanished, and warn that unless the black box is found, the mystery may never be solved.
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