Missing Titanic sub: Noises heard in ocean, still no remains of vessel as oxygen supply lowers

U.S. Coast Guard Capt. Jamie Frederick told reporters Wednesday that the Coast Guard isn't sure what the underwater noises a Canadian P-3 aircraft picked up in the Titan search area are.

"We don't know what they are," he said. "The good news is what I can tell you is we're searching in the area where the noises were detected and we'll continue to do so."

The Coast Guard posted on Twitter early Wednesday morning that a "Canadian P-3 aircraft detected underwater noises in the search area.". #titanic
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