Cavern System News Today

Outside the hospital where the four boys are now being treated. lets go first to jonathan miller. this was an extraordinary rescue. theres still a long way to go. so how do they pull this off? >> reporter: joe, they had about 90 rescue workers in total down in that incredibly labyrinth and cavern system. only 13 of them were involved with the actual rescue of pulling the boys out. they were the trained cave divers. each boy, each of the four boys who have come out had a diver, one ahead of them ...

Daring and risky cave rescue of these 12 boys and their coach, stuck in this cavern system. in order to do this, they will have to dive some of these boys out and its very, very risky. there could be some last-minute hitches and delays. the boys have to get medical checks before theyll be allowed to even attempt this. but as far as we can ascertain from officials here on the ground, theyre pretty much in a position to give a green light on this very risky operation. >> so, whats the weather like...

Into the cave roof and extra extracting them that way, that could be preferable to having them come out the way they came in, because that would involve them diving, learning first to use scuba gear, then diving with the cave divers helping them through half a mile of submerged narrow passageways. it is all together, i think, around three -- four kilometers that theyd have to make their way out. thats really, really risky. but the risks also involve leaving them in there because, within a few da...

Race against time. >> so jonathan, they brought four out today. if they use the same number of people, do we presume that when they go back, theyre going to bring four more out and then have another hiatus or try to bring out all eight at once? >> reporter: well, you know, things change. the situation is fluid. i think the plans may change because of this extremely heavy rain. its been raining for hours here now. its a huge catchment area. as the water pours into that, its funneled down into tha...

Ago, is that there has been -- the oxygen tanks that had been prepositioned down throughout the cavern system needed to be replaced. they didnt just keep on bringing boys out until they had got more oxygen tanks inside. he said there would be a 10 to 20-hour hiatus. thats already five hours old, that information. we can expect the next batch of boys, we think theyre going to come out in three batches of three, the next lot, to start again in probably 12 hours time or so. we know that the operati...