Latest signals fuel hope

More resources deployed to verify progress on search in Indian Ocean

Three separate but fleeting sounds from deep in the Indian Ocean offered new hope over the weekend in the hunt for flight MH370, as officials rushed to determine whether they were signals from the plane's black box before the beacons fall silent.

The head of the multinational search being conducted off Australia's west coast confirmed that vessels from both Australia and China had detected suspected pulse signals in recent days, saying more ships and planes are being deployed for verifications.