Divers replace oxygen supplies before new move
Thailand’s interior minister says the same divers who took part in Sunday’s rescue of four boys trapped in a flooded cave will also conduct the next operation as they know the cave conditions and what to do.
In comments released by the government, Interior Minister Anupong Paojinda said officials were meeting yesterday morning, local time, about the next stage of the operation and how to extract the remaining nine people from the cave in the country’s north.
Anupong said divers need to place more air canisters along the underwater route to where the boys and their coach have been trapped since June 23. He said that process can take several hours.
He said the boys rescued on Sunday are strong and safe but need to undergo detailed medical checks.
Expert divers on Sunday rescued four of 12 boys from the flooded cave as a dangerous and complicated operation unfolded amid heavy rain and the threat of rising water underground.
Eight boys and the coach remained inside the Tham Luang Nang Non cave.
Extracting everyone could take up to four days, but the initial success raised hopes that could be done.
‘‘The operation went much better than expected,’’ said Chiang Rai acting governor Narongsak Osatanakorn, who is overseeing the mission.
He told reporters the four rescued boys were taken to the hospital in the town of Chiang Rai, the provincial capital, for evaluation, and the next phase of the operation will resume after about 10-20 hours.
The names of the rescued boys were not released.
His announcement, at a news conference more than an hour after helicopters and ambulances were seen rushing from the cave area, drew cheers and applause.
Narongsak had dubbed Sunday to be ‘‘D-day’’ as the complicated effort was launched in the morning.
He said 13 foreign divers and five Thai navy SEALs were taking part in the key leg of the rescue: taking the boys from where they have been sheltering and through dark, tight and twisting passageways filled with muddy water and strong currents.
Two divers were to accompany each of the boys, all of whom have been learning to dive only since July 2, when the first searchers found them.
Cave rescue experts consider an underwater escape to be a last resort, especially with people untrained in diving.
The death on Friday of a former Thai navy SEAL, Saman Gunan, underscored the risks. The diver, the first fatality of the rescue effort, was working in a volunteer capacity and died on a mission to place oxygen canisters along the route.
But Narongsak said earlier that recent mild weather and falling water levels had created optimal conditions for an underwater evacuation. Those conditions won’t last if the rain resumes, he said.
After the four boys were removed from the cave, heavy rain started falling.
The potential for rising water and the dwindling oxygen levels added to the urgency of getting the team out. Efforts to pump water out of the cave have been set back by heavy downpours.
Narongsak said on Saturday that experts told him new rain could shrink the unflooded space the boys are sheltering in to just 10 square metres (108 square feet).
The next phase of the operation would start sometime Monday after rescue teams replenish the supply of oxygen tanks along the route.
On Sunday night, Thai navy SEALs posted a celebratory note on their Facebook page, saying: ‘‘Have sweet dreams everyone. Good night. Hooyah.’’
The boys and their coach, whose team is known as the Wild Boars, became stranded when they were exploring the cave after a practice game on June 23.
Monsoon flooding cut off their escape route and prevented rescuers from finding them for almost 10 days.
The ordeal has riveted Thailand and captured the world’s attention. The search and rescue operation has involved dozens of international experts and rescuers, including a US military team.
Elon Musk’s Space X rocket company tested a ‘‘tiny kid-sized submarine’’ that could potentially help the children through the narrow, flooded cave passageways. A spokesman for Musk’s Boring Co tunnelling unit, which has four engineers at the cave, said in an email that Thai officials had requested the device.
If the tests were successful, the sub would be placed on a 17-hour flight to Thailand. He posted a video of a diver testing the device in a pool.
President Donald Trump tweeted on Sunday: ‘‘The U.S. is working very closely with the Government of Thailand to help get all of the children out of the cave and to safety. Very brave and talented people!’’
‘‘The operation went much better than expected.’’
Narongsak Osatanakorn, Chiang Rai acting governor