Elon Musk has questioned the expertise of Thai rescue officials who turned down his offer of a submarine, despite their having organised the successful rescue of all 12 boys and their football coach from a flooded cave.
Two of the boys had suspected lung infections but the four boys from the first group rescued were all walking around their hospital beds.
However the device was deemed "not practical" for the mission to retrieve the 12 boys and their soccer coach from the cave.
The medic, who has not yet been identified, is thought to be Army doctor Colonel Pak Loharachun, who was seen in a video clip with the stranded boys and reportedly stayed to take care of the group.
"We are not sure if this is a miracle, a science, or what", the Seals posted.
Payap Maiming, who helped provide food and necessities for rescue workers and journalists, was not in doubt, however. If the rain god helps us, then we may be able to work fast.
The boys, aged between 11 and 16, and their 25-year-old coach are now being assessed in hospital.
One of the concerns, health authorities could be holding is the risk of "cave disease" - histoplasmosis - which can be contracted by breathing in bat or bird droppings. He said Tuesday's rescue attempt began just after 10 in the morning, local time, and involved 19 divers.
Nevertheless, he said the rescuers were gaining experience every day.
Chief of the rescue mission, Narongsak Osottanakorn, declined to comment on the identity of the four people brought out in the evening, saying updates would be supplied at a news conference that is scheduled to be held late on Monday.
Musk posted an image of his email correspondence with Dick Stanton, the British diver who first made contact with the football squad and their coach, in which Stanton asked the inventor to keep working on a project that could potentially bear fruit. In light of the flooded cave incident in Thailand, Musk put his team to work on Saturday designing a solution for the rescue mission in the form of a tiny submarine that could maneuver through the tight passages of the cave.
"This has been a full blown worldwide call out and leading divers from all over the world have been involved".
Scott and co-producer Adam Smith have reportedly been conducting interviews around the rescue site, where more than 1,000 Thai personnel have been joined by dozens of worldwide specialists for the operation.
The rescue teams didn't end up using Musk's invention, which looks like a waterproof coffin.