Underwater noises were detected in the North Atlantic Ocean while U.S. and Canadian crews searched for the small 

vessel carrying five people that vanished two days earlier in a dive to the Titanic wreckage site, the U.S. Coast Guard announced early Wednesday. 

A Canadian aircraft heard "underwater noises in the search area," the Coast Guard said on Twitter shortly before 

12:30 a.m. ET. The noises prompted remotely operated vehicle operations to search for the origin of the noises. 

Those ROV searches have yielded negative results but continue," the Coast Guard said on Twitter.  ggggggggggggggggggg

Additionally, the data from the P-3 aircraft has been shared with our U.S. Navy experts for further

U.S. and Canadian ships and aircrafts had intensified search efforts Tuesday amid oxygen supply concerns. 

As of Tuesday morning, a total of 10,000 square miles had been searched, according to the Coast Guard. 

Capt. Jamie Frederick of the First Coast Guard District in Boston said the Titan, as the submersible is known, . 

ET Tuesday, meaning its oxygen supply could get depleted by Thursday morning.