Page 22 - Cave System News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Working to try and figure out just how to get these 12 boys out and their coach. >> quickly, he ran out of air in his tank. what about the air in the cave system? is there concern all this activity is drawing down the oxygen? >> reporter: yes, it is. and that the oxygen in that chamber was down to less than 15%, far lower than the air we breathe. that will lead to serious health effects. so there's a real sense that they need to get oxygen in there, and that this window is possibly closing. that as the rains start, and they have this morning, there is a feeling that they have a limited opportu...

Similar to the cave in thailand where the young boys and coach are trapped. it's similar in other ways too. >> this cave is flooded with snowmelt water. the cave in thailand with flooded with monsoon water. >> reporter: both men begin their scuba voyage into the cave with our cameras to give us a look at the dangers and show us why you absolutely never do anything like this without cave diving certification. just getting into this nearly half-mile-long cave system requires squeezing through a narrow tunnel, and this is not the narrowest tunnel they will face in waters that go as deep as 90 fee...

Divers in the united states. we're in northern utah's logan canyon at a cave system geographically similar to the cave in thailand. it's similar in other ways, too. >> this cave is flooded with snow melt water. the cave in thailand is flooded with monsoon water. >> reporter: both men begin their scuba voyage into the cave with our cameras. to give us a look at the dangers and show us why you absolutely never do anything like this without cave diving certification. just getting into this nearly half mile long cave system requires squeezing through a narrow tunnel. this is not the narrowest tunn...

Line changed? >> reporter: well, the time line hasn't necessarily changed but the realization is just how dangerous it's going to be. when a specialist diver, some 38 years old had come back from the private sector to dive with his former thai navy s.e.al.s, he died and passed out tragically while delivering oxygen to the boys. you might hear the ruckus behind me. this is water pump. they added several overnight, dave, to try and get the water out as far as they can from this cave system. they're pouring the water out of this cave system maybe to reduce the levels of water enough so that the b...

Welcome back to "cnn newsroom." in northern thailand rescuers have lost one of their own while trying to save a youth football team. officials say this former thai navy s.e.al. died hours ago after running out of air. the diver had just brought oxygen to the flooded cave system where that team was trapped. the 12 boys and their coach have been stranded now for 13 days and more rain is expected which could flood the cave even more. the death of the diver highlights the dangers that they face especially if they use scuba gear to try to escape. let's go live to the scene. cnn's david mckenzie is ...