Crews searching for Titanic submersible detect sounds- US Coast Guard

The port bow railing of the Titanic lies in 12,600 feet of water about 400 miles east of Nova Scotia as photographed earlier this month as part of a joint scientific and recovery expedition sponsored by the Discovery Channel and RMS Titantic. Reuters/File photo

(Reuters) - Canadian aircraft detected underwater noises in the North Atlantic in the search for a tourist submersible that vanished while on a voyage to the wreck of the Titanic , the U.S. Coast Guard said.

The discovery on Tuesday led search teams to relocate their underwater robotic search operations "in an attempt to explore the origin of the noises," the Coast Guard said in a series of tweets early on Wednesday.