The U.S. Coast Guard is reporting that they have detected more underwater noises in their search for the missing OceanGate submersible Wednesday.
The submersible named Titan went missing on Sunday while carrying five passengers over 12,000 feet to the Titanic wreckage site.
According to the report, the 22-foot submersible lost contact with its support ship around one hour and 45 minutes into the dive. OceanGate searched for the submersible itself before U.S. and Canadian officials joined the search.
Underwater noises in the search area were first detected on Tuesday by a Canadian P-3 aircraft.
They were heard again by “multiple” crafts.
Remotely operated vehicles were sent to “explore the origin of the noises,” but have so far yielded negative results.
ROV operations, however, will continue in the area according to Capt. Jamie Frederick, the First Coast Guard District response coordinator.
“We don’t know what they are,” Frederick said. “The good news is, we’re searching in the area where the noises were detected.”
In addition to the underwater units, there are several above-water vessels searching for the missing submersible.
Officials say the search has expanded to a surface area of roughly two times the size of Connecticut and 2.5 miles deep.
An expert submariner from the British Royal Navy, a team of French specialists on remotely operated vehicles (ROVs), and more ships and underwater vessels were joining the search:
“There is an enormous complexity associated with this case, due to the location being so far offshore and the coordination between multiple agencies and nations,” Frederick said.
According to reports, the Titan has enough oxygen to survive for at least 96 hours. Frederick said he would expect the submersible to run out of oxygen by Thursday morning, if the submersible remains intact due to the weight of the ocean.
As of Wednesday afternoon, the mission remains a search and rescue.