Titanic sub: Crews exploring undersea noises in ‘complex’ search

Rescue crews looking for the submersible vessel that went missing in the northern Atlantic Ocean are moving assets and focusing their search on an area where undersea noises have been detected, a US Coast Guard official has said.
While Captain Jamie Frederick said on Wednesday that authorities still do not know what these noises may be, he stressed that there is still hope to rescue the five people on board the sub, which was exploring the wreckage of the Titanic before it lost contact with the ship monitoring it on Sunday.
“When you’re in the middle of a search and rescue case, you always have hope. That’s why we’re doing what we do,” Frederick told reporters.
He said a Canadian aircraft first detected the noises on Tuesday, and they were also heard on Wednesday.

Al Jazeera’s Gabriel Elizondo reports from Boston.

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