Chinese, Australian Ships Try to Verify Potential "Pings" from Malaysian Jet

First one "ping", then another. A Chinese ship searching for missing Malayasi Airlines Flight 370 detected a second fleeting "ping" on Sunday. Both sounds came from near where investigators think the plane went down on March 8 in the Indian Ocean. Also on Sunday, the Australian defense ship Ocean Field detected a separate acoustic signal. But that one came from a different part of the vast search area, some 300 nautical miles away.

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