No Sign Of Missing Titanic Sub As Oxygen Supply Depletes Rapidly

The frantic search for the missing Titan submersible, en route to the Titanic wreckage site, escalated to a critical level this morning. As the countdown of the last few potentially remaining hours of onboard oxygen began, the sense of urgency to locate the miniature vessel heightened. NDTV's Parmeshwar Bawa reports as rescuers rush more ships and vessels to the area where the submersible disappeared, hoping underwater sounds they detected for a second straight day might help narrow their search in an increasingly urgent mission.