minister for a state visit. looking at pictures there now, india of course a critical ally to the united states at a time when relations with china are more strained. and then in the north atlantic ocean, a final push to findsubmersible, the big question this hour, have they run out of air. and we want to begin with that story, the critical deadline in the search for that submersible with five people on board that went missing on a voyage to the titanic. the u.s. coast guard estimates that oxygen may have run out as two new search vessels arrived this morning. we want to go right to tom costello. bring us up to date, where are we on search efforts this morning? reporter: absolutely. and from boston coast guard command center, here s the latest. we are now well past that 96-hour window when they thought air might start to just simply be gone, that it might be exhausted inside that sub. keep in mind, the sub went into the water sunday morning 8:00 a.m. or so, and so now we
on scene or close to being on scene. retired us navy captain armon joins us with the latest on search and rescue but first to matt finn on how crews are working to find the source of underwater noises that have been detectd the. matt good evening. good evening trace. the u.s. coast guard says a canadian surveillance plane picked up some type of underwater sounds yesterday and again today. but a coast guard captain says they cannot confirm reports that those sounds were happening in 30-minute intervals and also could not confirm those sounds were banging or tapping. the coast guard captain says the recordings were turned over to the u.s. navy for analysis and underwater robots were sent to the area where those sounds came from. an ocean science expert, who s assisting the coast guard said the noises sound like banging but could have come from various sources including a nearby ship. tonight some of the world s best data analysts are determining whether the sounds might have