Canadian aircraft detected 'underwater noises’ from search area for missing Titanic tourist submarine

A Canadian aircraft deployed to assist with rescue efforts for the missing Titanic tourist submersible picked up "underwater noises" in the vessel's search area, according to the Coast Guard (USCG).

"Canadian P-3 aircraft detected underwater noises in the search area," the USCG in the Northeast region announced on Twitter early Wednesday morning.

The Coast Guard said the detection of the underwater sounds in the designated search area prompted investigators to deploy remotely operated vehicle to relocate and investigate the origin of the unusual noises.

Though the search efforts "yielded negative results," the USCG said the operation continues.