The rescue mission is expected to resume Tuesday morning local time to bring out the remainder of the team.
A foreign diver involved in the mission to save 12 boys and their football coach from a flooded Thai cave has hailed the children as "incredibly strong", and described their treacherous escape journey as unprecedented.
Meanwhile, Prime Minister Prayut Chan-o-cha dismissed rumours on Tuesday that the boys had been drugged to facilitate the operation, saying the children had not been given anaesthetic.
The "Wild Boars" team became trapped on June 23 when they set out to explore the cave after soccer practice and rains flooded the tunnels.
The boys were carried out on a stretcher on Tuesday, making them the first two to come out on the rescue's third day.
Members of the trapped soccer team in a section of Tham Luang cave.
Two of the four boys who were rescued on Sunday and were given antibiotics after showing signs of pneumonia, the health official said.
"The water level is still at a satisfactory level and we have enough teams to complete the mission", Narongsak said on Monday.
After more than two weeks all 12 boys and their coach, stuck in the flooded Tham Luang Cave have been rescued by the Thai navy seal team.
"If everything goes right, we will see four kids and a doctor and Seals that have stayed with the kids will all come out", the governor said.
Four boys were rescued from the underground caves on Sunday, bringing the total number of recovered children to eight.
Two of them possibly have a lung infection but all eight are generally "healthy and smiling", he said.
Two of the boys are now being treated for minor lung infections.
The coach was in a weaker condition, having sacrificed his share of their meagre food supplies to give to the boys during the nine days before further help arrived.
"The kids are footballers so they have high immune systems", Jesada said.
"They are diving in something considered (an) extremely hazardous environment in zero visibility, the only light that is in there is the torch light we bring our self".
With oxygen levels in their chamber falling to unsafe levels and complete flooding of the cave system possible, rescuers pushed ahead with the least-worst option of having divers escort them out through the extremely narrow and water-filled tunnels.
The rescue missions take almost half a day to complete.
Heavy rains lashed the northern Thai region late Monday and a steady downpour has continued Tuesday.
"Although his technology is good and sophisticated, it's not practical for this mission", Osatanakorn said after the press conference.
So far it has been successful, as three boys have now emerged with the help of divers.
After garnering headlines with initial ideas of installing a giant air tube inside the cave complex and using his firm's penetrating radar to dig holes to reach the boys, Musk offered his idea for the mini-sub.
Thai cave rescue sees four more boys freed
The four rescued boys have been transported to a Chiang Rai hospital for treatment and medical evaluations, reported CBS . But bringing out the remaining four boys and their coach could take more than one operation, Narongsak warned.
All The Adorable Photos From Prince Louis' Christening
It was a family affair for the Middletons, who all stepped out on Monday afternoon to celebrate Prince Louis' christening. Prince Harry bought a very special (and expensive) christening gift for Prince Louis , who is due to be christened today.