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SYDNEY - Australian officials said on Wednesday that two new "ping" signals had been detected in the search for missing Malaysia Airlines Flight MH370, which was carrying 227 passengers and 12 crew.

Investigation of pings yet to bear fruit

Angus Houston, head of the Australian agency coordinating the search, said one ping was detected on Tuesday afternoon and lasted five minutes, 25 seconds, while a second was picked up on Tuesday night and lasted seven minutes.

On the weekend, a U.S. Navy "towed pinger locator" picked up two signals consistent with black box locator beacons - the first for more than two hours and the second for about 13 minutes.

Special: Malaysia Airlines plane "ended" in sea