The International Explorer’s Club, which represents two of the passengers on board the Titan, has issued an update insisting it remains committed to a successful rescue of all five passengers.

“While the planned life support supply depletes, we believe crew conservation and the near freezing temperatures could prolong life support by some time and the crew knows this,” president of the Explorer’s Club Richard Garriott said.

Garriott said two 6,000 metre-capable remotely operated vehicles and lift capability were at the search site, while a separate ROV from deep-water firm Magellan, which has a robotic arm that can manipulate objects undersea, was en route.

“I, along with members of The Explorers Club, have been reaching out to leaders in the Coast Guard, Navy and Air Force, as well as representatives and senators,” he said.

“The Magellan ROV has been to the Titanic site more than any other ROV and has recently mapped the entire site, including the debris field.

The Magellan has manipulator arms that are able to do work on structures at full depth and if necessary, can attach lifting cables directly to the hoist point or other structures of the submersible.“

British billionaire explorer and passenger Hamish Harding is the chair of the club’s Middle East chapter in Dubai, where he is based, while French passenger and explorer Paul-Henri Nargeolet is also a member.

The Explorer’s Club was founded in 1904, as a multidisciplinary, professional society dedicated to the advancement of field research, scientific exploration and resource conservation.

It has a community of chapters around the world.

Notable club members include Jane Goodall, Neil deGrasse Tyson, Kathryn Sullivan, Walter Cronkite, James Cameron, Sylvia Earle, US President Theodore Roosevelt, The Apollo 11 crew of Neil Armstrong, Edwin “Buzz” Aldrin and Michael Collins and the Mount Everest summit team of Tenzing Norgay and Edmund Hillary.