Race Against Time: Search for Missing Titanic Submersible Intensifies as Oxygen Runs Out.

The search for the missing submersible, Titan, which disappeared on its way to the Titanic wreckage site, has entered a new phase of desperation as the final hours of oxygen possibly left on board ticked off the clock. Rescuers have rushed more ships and vessels to the site of the disappearance, hoping underwater sounds they detected for a second straight day might help narrow their search in the urgent, international mission. The crew had only a four-day oxygen supply when the vessel set off around 6 a.m. Sunday. The area being searched was twice the size of Connecticut in waters as deep as 13,200 feet. Meanwhile, newly uncovered allegations suggest there had been significant warnings made about vessel safety during the submersible’s development.