A search and rescue operation is currently underway for a tourist submarine that went missing while en route to the wreckage site of the Titanic.

The submersible, carrying five individuals, disappeared deep in the Atlantic Ocean with only four days' worth of survival capability remaining.

The U.S. Coast Guard, in conjunction with Canadian rescue teams, is leading the search effort. The submersible was reported overdue by the Joint Rescue Coordination Centre in Halifax, Nova Scotia, approximately 435 miles south of St. John’s, Newfoundland.

Rear Adm. John Mauger stated that multiple aircraft and a commercial ship were deployed for the search. The remote location of the operation, about 900 miles east of Cape Cod and up to 13,000 feet deep, poses challenges in the search process, as both the surface and underwater areas need to be covered!

The submersible, named "Titan," departed from St. John's and began its dive on Sunday morning. Contact was lost with the vessel an hour and 45 minutes later. OceanGate Expeditions, the Washington-based company that owns the submersible, confirmed the incident and expressed gratitude for the assistance received in attempting to reestablish contact.

The submersible is equipped with a 96-hour emergency sustainment capability, including oxygen and fuel. Efforts are underway to locate the submersible and ensure the safe return of the crewmembers.

The search operation will continue throughout the night, with aircraft conducting underwater and surface searches.